L2SS-278: Fix UDP routing by adding a MTU=9000 network

Use an additional MTU=9000 network to receive UDP through, because our data packets are >1500. The new network needs a name alphabetically before NETWORK_MODE to force Docker to use that to expose our ports on.

Closes L2SS-278

docker-compose/Makefile

@@ -124,13 +124,13 @@ down:  ## stop all services and tear down the system
 	$(DOCKER_COMPOSE_ARGS) docker-compose $(COMPOSE_FILE_ARGS) down
 ifneq ($(NETWORK_MODE),host)
 	docker network inspect $(NETWORK_MODE) &> /dev/null && ([ $$? -eq 0 ] && docker network rm $(NETWORK_MODE)) || true
-    docker network inspect 9000-$(NETWORK_MODE) &> /dev/null && ([ $$? -eq 0 ] && docker network rm 9000-$(NETWORK_MODE)) || true
+	docker network inspect 9000-$(NETWORK_MODE) &> /dev/null && ([ $$? -eq 0 ] && docker network rm 9000-$(NETWORK_MODE)) || true
 endif
 
 minimal: ## start the base TANGO system
 ifneq ($(NETWORK_MODE),host)
 	docker network inspect $(NETWORK_MODE) &> /dev/null || ([ $$? -ne 0 ] && docker network create $(NETWORK_MODE))
-    docker network inspect 9000-$(NETWORK_MODE) &> /dev/null || ([ $$? -ne 0 ] && docker network create 9000-$(NETWORK_MODE) -o com.docker.network.driver.mtu=9000)
+	docker network inspect 9000-$(NETWORK_MODE) &> /dev/null || ([ $$? -ne 0 ] && docker network create 9000-$(NETWORK_MODE) -o com.docker.network.driver.mtu=9000)
 endif
 	$(DOCKER_COMPOSE_ARGS) docker-compose -f tango.yml -f networks.yml up -d