Examine DXGI_FORMAT_R10G10B10A2_UINT support for buffers

[baldurk]

loading, format checking, casting (e.g. try to DXGI_FORMAT_R32G32B32A32_UINT) and specifying 10:10:10:2 in the buffer format specifier.

[baldurk]

In 559b8e40 there are now two types "uintten" and "unormten" that can be specified in the buffer viewer to interpret data as 10:10:10:2 uint or unorm respectively.

http://i.imgur.com/JNnCTSz.png

[baldurk]

Changelist 7d4e539c will list the format in the pipeline state for typed buffers instead of listing an empty format. At the same time I included the root structure name for structured buffers instead of empty. I think this fixes the issues that were seen.