Refactoring HOS folder structure (#771)

* Refactoring HOS folder structure

Refactoring HOS folder structure:

- Added some subfolders when needed (Following structure decided in private).
- Added some `Types` folders when needed.
- Little cleanup here and there.
- Add services placeholders for every HOS services (close #766 and #753).

* Remove Types namespaces

Ryujinx.HLE/HOS/Services/Arp/ApplicationLaunchProperty.cs

@@ -0,0 +1,43 @@
+using Ryujinx.HLE.FileSystem;
+using Ryujinx.HLE.Utilities;
+using System;
+
+namespace Ryujinx.HLE.HOS.Services.Arp
+{
+    class ApplicationLaunchProperty
+    {
+        public long  TitleId;
+        public int   Version;
+        public byte  BaseGameStorageId;
+        public byte  UpdateGameStorageId;
+        public short Padding;
+
+        public static ApplicationLaunchProperty Default
+        {
+            get
+            {
+                return new ApplicationLaunchProperty
+                {
+                    TitleId             = 0x00,
+                    Version             = 0x00,
+                    BaseGameStorageId   = (byte)StorageId.NandSystem,
+                    UpdateGameStorageId = (byte)StorageId.None
+                };
+            }
+        }
+
+        public static ApplicationLaunchProperty GetByPid(ServiceCtx context)
+        {
+            // TODO: Handle ApplicationLaunchProperty as array when pid will be supported and return the right item.
+            //       For now we can hardcode values, and fix it after GetApplicationLaunchProperty is implemented.
+
+            return new ApplicationLaunchProperty
+            {
+                TitleId             = BitConverter.ToInt64(StringUtils.HexToBytes(context.Device.System.TitleID), 0),
+                Version             = 0x00,
+                BaseGameStorageId   = (byte)StorageId.NandSystem,
+                UpdateGameStorageId = (byte)StorageId.None
+            };
+        }
+    }
+}