mono/MonoGame — pull request #3330 by mgarstenauer (2014-12-29 13:25:45+00:00)
Title: Vertex channel conversion

In the XNA content pipeline vertex colors are usually imported as `VertexChannel`.
In the MonoGame content pipeline vertex colors seem to be imported as `VertexChannel`.
That's just a minor difference - no problem so far.

When the mesh is processed in my custom model processor, I call

geometryContent.Vertices.Channels.ConvertChannelContent(colorChannelIndex);

This call fails in MonoGame because `VertexChannel` cannot be converted to `VertexChannel`. This commit adds support for this trivial case.