Merge pull request #2610 from hach-que/alias-fix

Fix referencing aliasing with new Protobuild
Fixed Game.Exit() crash on WinGL and Linux platforms.

We must not call Game.Tick() after Game.Exit().
Fixes issue #2605.
First implementation of ReflectiveWriter.
Added EnumWriter support.
Merge pull request #2614 from thefiddler/runloopfix

Fixed Game.Exit() crash on WinGL and Linux platforms.
Fixed tabs.
Merge pull request #2616 from SickheadGames/reflective_writer

ReflectiveWriter
Get platforms that return false in BeforeRun working again (Just Android...) refs #2615
Merge pull request #2617 from danzel/fix-android

Get android working again
First rough skeleton of IntermediateSerializer classes.
Added some of the implementation from the XmlImporter work.
Removed unused usings.
Merge pull request #2621 from SickheadGames/intermediate

IntermediateSerializer Skeleton
Fixed Texture2D.GetData on DirectX platforms
Added support for the element count parameter
This should fix GetData for Texture3D.Directx
Merge pull request #2622 from Nezz/getdatafix

Fixed Texture2D.GetData on DirectX platforms
Merge pull request #2623 from Nezz/getdata3dfix

Fix GetData for Texture3D.Directx
Added helpers to retrive all the ContentTypeSerializerAttribute types.
Fixed incorrect overload.
Added int, float, and string serializers.
Added more implementation references.