Merge xbox360 branch into main

- Enable all Xbox 360 ContentPackage/submission builds in solution
- Map Xbox 360 configs to actual Xbox 360 platform instead of Win32
- Add Build.0 lines for ContentPackage, CONTENTPACKAGE_SYMBOLS,
  ContentPackage_NO_TU, and ReleaseForArt Xbox 360 configs
- Remove xbdm.lib from Release/ContentPackage_Vita (debug-only lib)
- Add meme.xui from TU56 reference

Minecraft.Client/Common/Postbuilds/Windows64-postbuild.ps1

@@ -24,7 +24,7 @@ $folderCopies = @(
     @{ Source = "DurangoMedia";    		Dest = "Windows64Media" },
     @{ Source = "Windows64Media";  		Dest = "Windows64Media" },
 	@{ Source = "PSVita\Tutorial"; 		Dest = "Windows64Media\Tutorial" },
-	@{ Source = "music"; Dest = "Windows64Media\music" },
+	@{ Source = "Windows64Media\music"; Dest = "Windows64Media\music" },
 	@{ Source = "Windows64Media\Sound"; Dest = "Windows64Media\Sound" },
 	@{ Source = "Common\Postbuilds\Contents\Windows64\redist64"; Dest = "redist64" }
 )

Minecraft.Client/Tesselator.cpp

@@ -832,7 +832,7 @@ void Tesselator::vertex(float x, float y, float z)
 		pShortData[5] = (((int)(v * 8192.0f))&0xffff);
 		int16_t u2 = ((int16_t*)&_tex2)[0];
 		int16_t v2 = ((int16_t*)&_tex2)[1];
-#if defined _XBOX_ONE || defined __ORBIS__
+#if defined _XBOX_ONE || defined __ORBIS__ || defined _WINDOWS64
 		// Optimisation - pack the second UVs into a single short (they could actually go in a byte), which frees up a short to store the x offset for this chunk in the vertex itself.
 		// This means that when rendering chunks, we don't need to update the vertex constants that specify the location for a chunk, when only the x offset has changed.
 		pShortData[6] = ( u2 << 8 ) | v2;