Merge pull request #186 from superandrew213/fix-requiresMainQueueSetup-warning

Add requiresMainQueueSetup

ios/GLCanvasManager.m

@@ -18,6 +18,10 @@ RCT_EXPORT_MODULE();
   return self;
 }
 
++ (BOOL)requiresMainQueueSetup {
+  return NO;
+}
+
 - (dispatch_queue_t)methodQueue
 {
   return self.bridge.uiManager.methodQueue;