First compiling version of operator overloading for C! (on both msvc and clang using -std=c11 flag, using _Generic selection with some helper macros)

Extremely satsified with how unofuscated the generated code is for _Generic.
Still fixing up the templated container code though in the c-codegen

scripts/build.ci.ps1

@@ -237,6 +237,7 @@ if ( $c_library )
 	} elseif ($vendor -eq "msvc") {
 		$compiler_args += "/TC"       # Compile as C
 		$compiler_args += "/Zc:__cplusplus" # Fix __cplusplus macro
+		$compiler_args += "/std:c11"
 	}
 
 	build-simple $path_build $includes $compiler_args $linker_args $unit $executable