Add exception error manager

Signed-off-by: Asai Neko <sugar@sne.moe>

exception/services.go

@@ -0,0 +1,16 @@
+package exception
+
+// Middleware Services
+const (
+	MiddlewareGinLoggerService  = "901"
+	MiddlewareJwtService        = "902"
+	MiddlewarePermissionService = "903"
+	MiddlewareApiVersionService = "904"
+)
+
+// Application Services
+const (
+	AuthService  = "001"
+	UserService  = "002"
+	EventService = "003"
+)