mesa: include mtypes.h less

- remove mtypes.h from most header files
- add main/menums.h for often used definitions
- remove main/core.h

v2: fix radv build

Reviewed-by: Brian Paul <brianp@vmware.com>

src/compiler/glsl/builtin_functions.cpp

@@ -75,7 +75,7 @@
 
 #include <stdarg.h>
 #include <stdio.h>
-#include "main/core.h" /* for struct gl_shader */
+#include "main/mtypes.h"
 #include "main/shaderobj.h"
 #include "ir_builder.h"
 #include "glsl_parser_extras.h"