Implement the extension GL_EXT_spirv_intrinsics

- Add support of SPIR-V execution mode qualifiers.
- Add support of SPIR-V storage class qualifier.
- Add support of SPIR-V decorate qualifiers.
- Add support of SPIR-V type specifier.
- Add support of SPIR-V intruction qualifiers.
- Add support of spirv_by_reference/spirv_literal parameter qualifier.
- Add shader stage macros introduced by this extension.

gtests/Spv.FromFile.cpp

@@ -356,6 +356,13 @@ INSTANTIATE_TEST_SUITE_P(
         "spv.int64.frag",
         "spv.intcoopmat.comp",
         "spv.intOps.vert",
+        "spv.intrinsicsSpirvByReference.vert",
+        "spv.intrinsicsSpirvDecorate.frag",
+        "spv.intrinsicsSpirvExecutionMode.frag",
+        "spv.intrinsicsSpirvInstruction.vert",
+        "spv.intrinsicsSpirvLiteral.vert",
+        "spv.intrinsicsSpirvStorageClass.rchit",
+        "spv.intrinsicsSpirvType.rgen",
         "spv.layer.tese",
         "spv.layoutNested.vert",
         "spv.length.frag",