Request: New pin methods

Hello,

was thinking would be really cool if we could have getvaluepointer access in the following pins:
-ITransformIn
-ITransformOut
-IColorIn
-IColorOut

Considering Matrix4x4 and RGBAColor structure have a structlayout to sequential, Marshal.Copy would make a massive performance improvement for output, and we could cast Matrix and Color inputs out of the box from a double pointer.

Thanks