Added Entityx to project

external/entityx-1.1.2/entityx/help/NonCopyable.h

@@ -0,0 +1,20 @@
+//  Inspired heavily by boost::noncopyable
+
+#pragma once
+
+namespace entityx {
+namespace help {
+
+class NonCopyable {
+protected:
+  NonCopyable() = default;
+  ~NonCopyable() = default;
+
+
+  NonCopyable(const NonCopyable&) = delete;
+  NonCopyable& operator = (const NonCopyable &) = delete;
+};
+
+
+}  // namespace help
+}  // namespace entityx