Add coverage of uniform structures with non-vec4 elements.

Triggers a uniform packing bug in ANGLE's D3D11 backend.
Merge pull request #558 from vonture/master

Add coverage of uniform structures with non-vec4 elements.
Added link to IP disclosures. Cleaned up name references.
Merge pull request #559 from kenrussell/ip-disclosures

Added link to IP disclosures. Cleaned up name references.