Clean up manifest file.

Mostly removing the `.c*` wildcards since those are grabbing way too
much.

Author: HexDecimal

MANIFEST.in

@@ -1,17 +1,8 @@
-prune examples
-prune fonts
-prune libtcod
-prune tests
-
 include *.py *.cfg *.txt *.rst
 
-recursive-include tdl *.py *.png *.txt *.md *.rst
-
-recursive-include tcod *.py *.c* *.h
+recursive-include tcod *.py *.c *.h
 
-recursive-include libtcod/src *.c* *.h* *.glsl*
+recursive-include libtcod/src *.glsl* *.c *.h  *.cpp *.hpp
 include libtcod/*.txt libtcod/*.md
 
-recursive-include dependencies/fake_libc_include *.h
-
 exclude tcod/*/SDL2.dll