(svn r2866) Move all functions and tables which aren't directly involved in managing the sprite heap to a new file gfxinit.c.

This doesn't ease the global variable mess, but makes the distinction between sprite heap and gfx loading routines easier.

openttd.vcproj

@@ -237,6 +237,9 @@
 			<File
 				RelativePath="gfx.c">
 			</File>
+			<File
+				RelativePath="gfxinit.c">
+			</File>
 			<File
 				RelativePath="landscape.c">
 			</File>
@@ -510,6 +513,9 @@
 			<File
 				RelativePath="gfx.h">
 			</File>
+			<File
+				RelativePath="gfxinit.h">
+			</File>
 			<File
 				RelativePath="gui.h">
 			</File>