Resolve "Default path to controller config (gosdn.toml/development-gosdn.toml) is not working"

See merge request !313

Makefile

@@ -57,6 +57,9 @@ build: pre
 	CGO_ENABLED=0 $(GOBUILD) -o $(BUILD_ARTIFACTS_PATH)/gosdnc ./cli/
 	CGO_ENABLED=0 $(GOBUILD) -o $(BUILD_ARTIFACTS_PATH)/orchestrator ./csbi/cmd/csbi/
 
+start: build
+	./$(BUILD_ARTIFACTS_PATH)/gosdn -l debug --config ./controller/configs/gosdn.toml
+
 container: build
 	docker build -t gosdn -f controller/Dockerfile .
 	docker build -t gosdnc -f cli/Dockerfile .