Added --vn option to generate a C header file containing a variable assigned to the hex representation of the shader. This is a standard feature on Microsoft's HLSL compiler and it allows developers to include pre-compiled shaders directly into the code. This option enables "Hex output", so it is NOT required to specify -x as well. The output file name is preserved, so no ".h" extension is added. If you want the output file to have ".h" extension then you have to specify it on the output file name. The generated header file uses the "#pragma once" pragma to avoid multiple inclusions.

SPV: Emit names of specialization constants, fixes #710

Install headers

This enables the vulkan loader to be built against an installed glslang.

CMake: add target_link_libraries internally

SpvBuilder: add const specifier to vector reference arguments

Use correct OriginUpperLeft when linking more than one shader.

Semantics: Texture clamp functions are available for fragment shader only

Fix a CMakeLists issue

Fix build if NV_EXTENSIONS is not set

support SPV_NV_viewport_array2 and SPV_NV_stereo_view_rendering

Makes it easier to include glslang in a larger CMake project---instead
of having to call `target_link_libraries(glslang OSDependent OGLCompiler
HLSL)`, for example, you only need to call
`target_link_libraries(glslang)` and it will pull in the helpers it
needs.

This is also better in terms of cleaning up the "public interface",
of sorts, for building glslang: end-users probably shouldn't need to
know or be explicitly dependent on internal targets.

Fix for not-handled-in-switch warnings

Added default to the switch() for AMD_EXTENSIONS to avoid a spew
of warning messages.

Fix compilation with MSVC 2010

HLSL: fix dereferencing when copying split structures with arrays

Implement SPV_KHR_subgroup_vote

SPV: Implement new revision of extension GL_AMD_shader_ballot

When copying split types with mixtures of user variables and buitins,
where the builtins are extracted, there is a parallel structures traversal.
The traversal was not obtaining the derefenced types in the array case.

- Add support for invocation functions with "InclusiveScan" and
  "ExclusiveScan" modes.
- Add support for invocation functions taking int64/uint64/doube/float16
  as inout data types.

doc.cpp: Add capabilities, scope to the opcodes. Add opcode and
capability strings.
GLSL.ext.KHR.h: Add extension
string.
GlslangToSpv.cpp: Fix handling of opcodes to generate
appropriate SPIR-V.
spirv.hpp: Add capability and opcode
enums.
spv.shaderGroupVote.comp.out: Update SPIR-V output for test
shader.

This reduces code duplication in a few ways, and better encapsulates
vector swizzle representation.

HLSL: Improved overload handling