Add Makefile for basic tasks

Makefile

@@ -0,0 +1,28 @@
+DIRS = $(shell go list ./... | grep -v /vendor/)
+
+DEV_DEPS = github.com/kardianos/govendor \
+	github.com/vektra/mockery/.../ \
+	github.com/mailru/easyjson/...
+
+test:
+	@go test $(DIRS)
+
+generate: dev-deps
+	@go generate $(DIRS)
+
+build:
+	mkdir -p bin && go build -o bin/ozuio
+
+run: build
+	./bin/ozuio
+
+install-vendor:
+	go install ./vendor/...
+
+dev-deps:
+	@$(foreach DEP,$(DEV_DEPS),go get $(DEP);)
+
+update-dev-deps:
+	@$(foreach DEP,$(DEV_DEPS),go get -u $(DEP);)
+
+.PHONY: test build generate run install-vendor dev-deps