added boxes from server

src/network/LocalClient.h

@@ -21,5 +21,9 @@ namespace ZL {
         std::unordered_map<int, ClientStateInterval> getRemotePlayers() override {
             return std::unordered_map<int, ClientStateInterval>();
 		}
+
+        std::vector<std::pair<Eigen::Vector3f, Eigen::Matrix3f>> getServerBoxes() override {
+            return {};
+        }
     };
 }