v3 - main to cut out

cmd/open_im_cms_api/main.go

@@ -0,0 +1,17 @@
+package main
+
+import (
+	"Open_IM/internal/cms_api"
+	"Open_IM/pkg/utils"
+	"fmt"
+
+	"github.com/gin-gonic/gin"
+)
+
+func main() {
+	gin.SetMode(gin.ReleaseMode)
+	router := cms_api.NewGinRouter()
+	router.Use(utils.CorsHandler())
+	fmt.Println("start cms api server, port: ", 8000)
+	router.Run(":" + "8000")
+}