include headers in cmake source, added a script to check for consistency, reporting missing headers & C files.

this is important so IDE's using CMake integration always get blender headers. - QtCreator & MSVC for eg, probably others too.

source/blender/editors/mesh/CMakeLists.txt

@@ -43,6 +43,8 @@ SET(SRC
 	mesh_data.c
 	mesh_ops.c
 	meshtools.c
+
+	mesh_intern.h
 )
 
 BLENDERLIB(bf_editor_mesh "${SRC}" "${INC}")