Updated how we handle client ids in the world service and logic service

Implemented the bidirectional comms stream between the world service and game logic service

proto/game_logic.proto

@@ -7,7 +7,7 @@ service GameLogicService {
 }
 
 message NearbyObjectsRequest {
-  uint32 client_id = 1;
+  string client_id = 1;
   float x = 2;
   float y = 3;
   float z = 4;