VideoCommon: Handle wireframe mode in the geometry shader.
D3DState: Remove wireframe rasterizer support.
VideoCommon: Make IsPassthrough() a function of the ShaderUid.
GeometryShaderGen: Re-emit the first vertex when wireframe mode is enabled.
Merge pull request #1716 from Armada651/geom-wireframe

VideoCommon: Handle wireframe mode in the geometry shader.