feat: support mf calling api

features/ue/api.go

@@ -0,0 +1,18 @@
+// log management package
+
+package ue
+
+import (
+	"be.ems/features/ue/mf_calling"
+	"be.ems/lib/log"
+	"github.com/gin-gonic/gin"
+)
+
+func InitSubServiceRoute(r *gin.Engine) {
+	log.Info("======init UE management group gin.Engine")
+
+	mfGroup := r.Group("/psap/v1/mf")
+
+	mf_calling.Register(mfGroup)
+	// register other sub modules routes
+}