[#100] Added defines to shader compilation and completed FSR

include/vkcv/Core.hpp

modules/shader_compiler/CMakeLists.txt

modules/shader_compiler/include/vkcv/shader/Compiler.hpp

modules/shader_compiler/include/vkcv/shader/GLSLCompiler.hpp

modules/shader_compiler/src/vkcv/shader/Compiler.cpp

modules/shader_compiler/src/vkcv/shader/GLSLCompiler.cpp

modules/upscaling/include/vkcv/upscaling/FSRUpscaling.hpp

modules/upscaling/src/vkcv/upscaling/FSRUpscaling.cpp