Rename wire_gen file and add makefile (#199)

* Rename wire_gen file and add makefile

* update go mod

Author: Yiling-J

Makefile

@@ -0,0 +1,25 @@
+.PHONY: test lint cover mock_wire mock_gen
+ 
+test:
+	go test ./...
+
+lint:
+	golangci-lint run
+
+cover:
+	go test -coverprofile=cover.out -coverpkg=./... ./...
+	go tool cover -html=cover.out -o cover.html
+	open cover.html
+
+mock_wire:
+	@echo "Running wire for component mocks..."
+	@go run -mod=mod github.com/google/wire/cmd/wire opencsg.com/csghub-server/component
+	@if [ $$? -eq 0 ]; then \
+		echo "Renaming wire_gen.go to wire_gen_test.go..."; \
+		mv component/wire_gen.go component/wire_gen_test.go; \
+	else \
+		echo "Wire failed, skipping renaming."; \
+	fi
+
+mock_gen:
+	mockery