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.
First pass at the ReflectiveSerializer.
Implemented ReadRawObject.
Fixed to move past asset element.
First implementation of IntermediateSerializer.GetTypeSerializer().
Merge pull request #2625 from SickheadGames/intermediate

More IntermediateSerializer