Made GSTheme implement fast forwarding. Should speed things up a lot with the new ABI.

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@29052 72102866-910b-0410-8b05-ffd578937521

Source/GSTheme.m

@@ -1376,6 +1376,10 @@ typedef	struct {
 {
   return [_resource description];
 }
+- (id) forwardingTargetForSelector:(SEL)aSelector
+{
+  return _resource;
+}
 - (void) forwardInvocation: (NSInvocation*)anInvocation
 {
   [anInvocation invokeWithTarget: _resource];