(svn r10092) -Codechange: code-seperated the spriteloader and blitter from the rest of the code

-Add: make it possible to pick your own blitter (-b <blitter>, -h for overview)
-Add: added a new optimized 8bpp blitter (default, caches sprites of all zoom-levels)
-Add: added a debug 8bpp blitter and a very slow normal 8bpp blitter

source.list

@@ -290,6 +290,20 @@ ai/trolly/pathfinder.cpp
 ai/trolly/shared.cpp
 ai/trolly/trolly.cpp
 
+# Blitters
+blitter/8bpp_debug.cpp
+blitter/8bpp_debug.hpp
+blitter/8bpp_optimized.cpp
+blitter/8bpp_optimized.hpp
+blitter/8bpp_slow.cpp
+blitter/8bpp_slow.hpp
+blitter/blitter.hpp
+
+# Sprite loaders
+spriteloader/grf.cpp
+spriteloader/grf.hpp
+spriteloader/spriteloader.hpp
+
 # NewGRF
 newgrf.cpp
 newgrf_canal.cpp