Revert "compiler: removed unused Makefile.sources"
Revert "compiler: removed unused Makefile.sources"

Whoops, didn't mean to push this one.

This reverts commit 78f4c555b93eb0951dcd9c5812109d506dd03023.

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler