chore: make yuzu REUSE compliant

[REUSE] is a specification that aims at making file copyright
information consistent, so that it can be both human and machine
readable. It basically requires that all files have a header containing
copyright and licensing information. When this isn't possible, like
when dealing with binary assets, generated files or embedded third-party
dependencies, it is permitted to insert copyright information in the
`.reuse/dep5` file.

Oh, and it also requires that all the licenses used in the project are
present in the `LICENSES` folder, that's why the diff is so huge.
This can be done automatically with `reuse download --all`.

The `reuse` tool also contains a handy subcommand that analyzes the
project and tells whether or not the project is (still) compliant,
`reuse lint`.

Following REUSE has a few advantages over the current approach:

- Copyright information is easy to access for users / downstream
- Files like `dist/license.md` do not need to exist anymore, as
  `.reuse/dep5` is used instead
- `reuse lint` makes it easy to ensure that copyright information of
  files like binary assets / images is always accurate and up to date

To add copyright information of files that didn't have it I looked up
who committed what and when, for each file. As yuzu contributors do not
have to sign a CLA or similar I couldn't assume that copyright ownership
was of the "yuzu Emulator Project", so I used the name and/or email of
the commit author instead.

[REUSE]: https://reuse.software

Follow-up to 01cf05bc75

.ci/scripts/clang/docker.sh

@@ -1,5 +1,8 @@
 #!/bin/bash -ex
 
+# SPDX-FileCopyrightText: 2021 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 # Exit on error, rather than continuing with the rest of the script.
 set -e
 

.ci/scripts/clang/exec.sh

@@ -1,5 +1,8 @@
 #!/bin/bash -ex
 
+# SPDX-FileCopyrightText: 2021 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 mkdir -p "ccache"  || true
 chmod a+x ./.ci/scripts/clang/docker.sh
 # the UID for the container yuzu user is 1027

.ci/scripts/clang/upload.sh

@@ -1,5 +1,8 @@
 #!/bin/bash -ex
 
+# SPDX-FileCopyrightText: 2021 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 . .ci/scripts/common/pre-upload.sh
 
 REV_NAME="yuzu-linux-${GITDATE}-${GITREV}"

.ci/scripts/common/post-upload.sh

@@ -1,11 +1,14 @@
 #!/bin/bash -ex
 
+# SPDX-FileCopyrightText: 2019 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 # Copy documentation
-cp license.txt "$DIR_NAME"
+cp LICENSE.txt "$DIR_NAME"
 cp README.md "$DIR_NAME"
 
 if [[ -z "${NO_SOURCE_PACK}" ]]; then
-  tar -cJvf "${REV_NAME}-source.tar.xz" src externals CMakeLists.txt README.md license.txt
+  tar -cJvf "${REV_NAME}-source.tar.xz" src externals CMakeLists.txt README.md LICENSE.txt
   cp -v "${REV_NAME}-source.tar.xz" "$DIR_NAME"
 fi
 

.ci/scripts/common/pre-upload.sh

@@ -1,5 +1,8 @@
 #!/bin/bash -ex
 
+# SPDX-FileCopyrightText: 2019 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 GITDATE="`git show -s --date=short --format='%ad' | sed 's/-//g'`"
 GITREV="`git show -s --format='%h'`"
 ARTIFACTS_DIR="artifacts"

.ci/scripts/format/docker.sh

@@ -1,5 +1,8 @@
 #!/bin/bash -ex
 
+# SPDX-FileCopyrightText: 2019 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 # Run clang-format
 cd /yuzu
 chmod a+x ./.ci/scripts/format/script.sh

.ci/scripts/format/exec.sh

@@ -1,5 +1,8 @@
 #!/bin/bash -ex
 
+# SPDX-FileCopyrightText: 2019 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 chmod a+x ./.ci/scripts/format/docker.sh
 # the UID for the container yuzu user is 1027
 sudo chown -R 1027 ./

.ci/scripts/format/script.sh

@@ -1,5 +1,8 @@
 #!/bin/bash -ex
 
+# SPDX-FileCopyrightText: 2019 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 if grep -nrI '\s$' src *.yml *.txt *.md Doxyfile .gitignore .gitmodules .ci* dist/*.desktop \
                  dist/*.svg dist/*.xml; then
     echo Trailing whitespace found, aborting

.ci/scripts/linux/docker.sh

@@ -1,5 +1,8 @@
 #!/bin/bash -ex
 
+# SPDX-FileCopyrightText: 2019 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 # Exit on error, rather than continuing with the rest of the script.
 set -e
 

.ci/scripts/linux/exec.sh

@@ -1,5 +1,8 @@
 #!/bin/bash -ex
 
+# SPDX-FileCopyrightText: 2019 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 mkdir -p "ccache"  || true
 chmod a+x ./.ci/scripts/linux/docker.sh
 # the UID for the container yuzu user is 1027

.ci/scripts/linux/upload.sh

@@ -1,5 +1,8 @@
 #!/bin/bash -ex
 
+# SPDX-FileCopyrightText: 2019 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 . .ci/scripts/common/pre-upload.sh
 
 APPIMAGE_NAME="yuzu-${GITDATE}-${GITREV}.AppImage"

.ci/scripts/merge/apply-patches-by-label-private.py

@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: 2019 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 # Download all pull requests as patches that match a specific label
 # Usage: python download-patches-by-label.py <Label to Match> <Root Path Folder to DL to>
 

.ci/scripts/merge/apply-patches-by-label.py

@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: 2019 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 # Download all pull requests as patches that match a specific label
 # Usage: python download-patches-by-label.py <Label to Match> <Root Path Folder to DL to>
 

.ci/scripts/merge/check-label-presence.py

@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: 2019 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 # Checks to see if the specified pull request # has the specified tag
 # Usage: python check-label-presence.py <Pull Request ID> <Name of Label>
 

.ci/scripts/merge/yuzubot-git-config.sh

@@ -1,2 +1,5 @@
+# SPDX-FileCopyrightText: 2019 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 git config --global user.email "yuzu@yuzu-emu.org"
 git config --global user.name "yuzubot"

.ci/scripts/transifex/docker.sh

@@ -1,5 +1,8 @@
 #!/bin/bash -e
 
+# SPDX-FileCopyrightText: 2021 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 # Setup RC file for tx
 cat << EOF > ~/.transifexrc
 [https://www.transifex.com]

.ci/scripts/windows/docker.sh

@@ -1,5 +1,8 @@
 #!/bin/bash -ex
 
+# SPDX-FileCopyrightText: 2019 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 set -e
 
 #cd /yuzu

.ci/scripts/windows/exec.sh

@@ -1,5 +1,8 @@
 #!/bin/bash -ex
 
+# SPDX-FileCopyrightText: 2019 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 mkdir -p "ccache" || true
 chmod a+x ./.ci/scripts/windows/docker.sh
 # the UID for the container yuzu user is 1027

.ci/scripts/windows/scan_dll.py

@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: 2019 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 import pefile
 import sys
 import re

.ci/scripts/windows/upload.ps1

@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: 2019 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 param($BUILD_NAME)
 
 $GITDATE = $(git show -s --date=short --format='%ad') -replace "-", ""
@@ -40,7 +43,7 @@ mkdir $MSVC_SOURCE
 mkdir "artifacts"
 
 # Build a tar.xz for the source of the release
-Copy-Item .\license.txt -Destination $MSVC_SOURCE
+Copy-Item .\LICENSE.txt -Destination $MSVC_SOURCE
 Copy-Item .\README.md -Destination $MSVC_SOURCE
 Copy-Item .\CMakeLists.txt -Destination $MSVC_SOURCE
 Copy-Item .\src -Recurse -Destination $MSVC_SOURCE

.ci/scripts/windows/upload.sh

@@ -1,5 +1,8 @@
 #!/bin/bash -ex
 
+# SPDX-FileCopyrightText: 2019 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 . .ci/scripts/common/pre-upload.sh
 
 REV_NAME="yuzu-windows-mingw-${GITDATE}-${GITREV}"