cleanup enums to make them more consistent

dCommon/dEnums/eAddFriendResponseCode.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#ifndef __EADDFRIENDRESPONSECODE__H__
+#define __EADDFRIENDRESPONSECODE__H__
+
+#include <cstdint>
+
+enum class eAddFriendResponseCode : uint8_t {
+	ACCEPTED = 0,
+	REJECTED,
+	BUSY,
+	CANCELLED
+};
+
+#endif  //!__ADDFRIENDRESPONSECODE__H__