[Examples, Build] Moving some smaller / less useful examples to a separate directory, speeding up builds.

examples_extra/SynchronousConcurrency/Sample/RandomCoreGraphicsNode.h

@@ -0,0 +1,16 @@
+//
+//  RandomCoreGraphicsNode.h
+//  Sample
+//
+//  Created by Scott Goodson on 9/5/15.
+//  Copyright (c) 2015 Facebook. All rights reserved.
+//
+
+#import <AsyncDisplayKit/AsyncDisplayKit.h>
+
+@interface RandomCoreGraphicsNode : ASCellNode
+{
+  ASTextNode *_textNode;
+}
+
+@end