Simplified shader compilation for shader programs

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

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

projects/bindless_textures/src/main.cpp

projects/first_mesh/src/main.cpp

projects/first_scene/src/main.cpp

projects/first_triangle/src/main.cpp

projects/wobble_bobble/src/main.cpp