add turf lib

modules/namespace/index.js

@@ -11,6 +11,12 @@ const getMapv = () => {
   return DC.Namespace?.mapv
 }
 
+const getTurf = () => {
+  return DC.Namespace?.turf
+}
+
 export const Cesium = getCesium()
 
 export const mapv = getMapv()
+
+export const turf = getTurf()