feat:插件模式尝鲜

server/router/example/plugin.go

@@ -0,0 +1,16 @@
+package example
+
+import "github.com/gin-gonic/gin"
+
+type Plugin struct {
+}
+
+func (*Plugin) Register(group *gin.RouterGroup) {
+	group.GET("hello", func(context *gin.Context) {
+		context.JSON(200, "hello world")
+	})
+}
+
+func (*Plugin) RouterPath() string {
+	return "group"
+}