Add builtin validation for SPV_NV_shader_sm_builtins (#2656)

Also add a Builtin test generator variant that takes
capabilities and extensions.

Tests
 - verify that the SMCountNV, SMIDNV, WarpsPerSMNV, and WarpIDNV Builtins are
   accepted as Inputs in Vertex, Fragment, TessControl, TessEval, Geometry,
   and Compute.
 - verify that the SMCountNV, SMIDNV, WarpsPerSMNV, and WarpIDNV Builtins are
   accepted as Inputs in MeshNV and TaskNV shaders.
 - verify that the SMCountNV, SMIDNV, WarpsPerSMNV, and WarpIDNV Builtins are
   accepted as Inputs in the 6 ray tracing stages
 - verify that the SMCountNV, SMIDNV, WarpsPerSMNV, and WarpIDNV Builtins are
   NOT accepted as Outputs.
 - verify that the SMCountNV, SMIDNV, WarpsPerSMNV, and WarpIDNV Builtins are
   NOT accepted as non-scalar integers (f32, uvec3)
 - verify that the SMCountNV, SMIDNV, WarpsPerSMNV, and WarpIDNV Builtins are
   NOT accepted as non-32-bit integers (u64)