Added empty packet functions for private airship

Thanks to @Daniel4rt

src/map/clif_packetdb.hpp

@@ -2387,4 +2387,12 @@
 	packet(0x0AF0,10);
 #endif
 
+// 2018-03-21aRagexeRE
+#if PACKETVER >= 20180321
+	parseable_packet(0x0A49,20,clif_parse_dull,0);
+	packet(0x0A4A,6);
+	packet(0x0A4B,22);
+	packet(0x0A4C,28);
+#endif
+
 #endif /* _CLIF_PACKETDB_HPP_ */