Implement raspberry pi specific resource size calculations

[bhouse-microsoft]

This work will need to get done with each release where we add additional format support.

We should review the size calculations that are being done for R0 and verify that this is work is complete for R0 and then move the work item to R1.

[indygit]

The basic support is in, we can handle linear surfaces of 32bit pixel formats (A8R8G8B8, D24S8, etc)
For R1, once we add support for tiling and more format, more work is needed in this area.