Server state query works, client doesn't use the result yet

Both sides of this message uses QUERY_CHARACTER_EXISTS because I'm just
trying to push forward, without worrying about mistakes I might be making.
I just want to merge this back into the main branch so I can say that I've
actually done something over the last few months.

server/server_logic.cpp

@@ -279,6 +279,9 @@ void ServerApplication::HandlePacket(SerialPacket* const argPacket) {
 		case SerialPacketType::REGION_REQUEST:
 			HandleRegionRequest(static_cast<RegionPacket*>(argPacket));
 		break;
+		case SerialPacketType::QUERY_CHARACTER_EXISTS:
+			HandleCharacterExists(static_cast<CharacterPacket*>(argPacket));
+		break;
 
 		//character management
 		case SerialPacketType::CHARACTER_CREATE: