Add 0.10.0 (Super Toast) no-game screen.

This commit adds a version codename and accompanying no-game screen. It should
cause at least a few seizures, if we're lucky. (Press 'F' for fullscreen).

Colors could use some tweaks, probably ... and it would be cool if various
hypnotizing patterns appeared intermittedly in the mosiac ... but that's for
the next commit. (Only two years until next time)!

src/common/version.h

@@ -31,7 +31,7 @@ static const int VERSION_MINOR = 10;
 static const int VERSION_REV = 0;
 static const char *VERSION = LOVE_VERSION_STRING;
 static const char *VERSION_COMPATIBILITY[] =  { VERSION, 0 };
-static const char *VERSION_CODENAME = "";
+static const char *VERSION_CODENAME = "Super Toast";
 
 } // love