hlsl_parser: strip D3D9 const defs
hlsl_parser: remove d3d9 and opengl register allocation modes, remove glsl wrappers
rendersystemvulkan: add missing debug utils check
initialize these hlsl string variables so dxc likes them
fix vulkan shader errors
vfx_vulkan: baseline compiler using dxc and spirv-reflect, no glslang shit, still using legacy d3d preprocess
Use DXC shader names MainVs, MainPs etc in vulkan pipeline