* core: Rewrite PSF parser & add encoder
add .sfo hex pattern to /scripts
* core/fs: allow to mount path as read-only
* common: Add CString wrapper to handle native null-terminated strings
* SaveData: rewrite to implement full functionality
* mock value for SYSTEM_VER
* SavaData: backup features
* SavaData: SaveDataMemory features
* imgui Ref-counted textures
- has a background thread to decode textures
* imgui: rework gamepad navigation
* PSF: fixed psf not using enum class for PSFEntryFmt (was a standard old ugly enum)
- Add null check to CString when itself is used in a nullable field
* SaveDataDialog implementation
- Fix Mounting/Unmounting check of SaveInstance
* system/MsgDialog: types & basic text display
* system/MsgDialog: User message dialog
* system/MsgDialog: RAII for MsgDialog ui
* system/MsgDialog: Progress bar dialog
* system/MsgDialog: System message texts
* system/MsgDialog: copy all ui state to local memory
handles when game release memory before close
extracted all UI code to it's own file
use single window instead of creating new one every single dialogOpen
* system/MsgDialog: debug logging
