Common: Move NonCopyable to its own header

Source/Core/Common/NonCopyable.h

@@ -0,0 +1,17 @@
+// Copyright 2015 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+// An inheritable class to disallow the copy constructor and operator= functions
+class NonCopyable
+{
+protected:
+	constexpr NonCopyable() = default;
+	~NonCopyable() = default;
+
+private:
+	NonCopyable(NonCopyable&) = delete;
+	NonCopyable& operator=(NonCopyable&) = delete;
+};