Merge branch 'master' of https://github.com/SuperMap/iClient-JavaScript

Author: xilanhuaweidapao

package.json

@@ -159,6 +159,7 @@
     "lodash.debounce": "^4.0.8",
     "lodash.difference": "^4.5.0",
     "lodash.remove": "^4.7.0",
+    "lodash.throttle": "^4.1.1",
     "lodash.topairs": "4.3.0",
     "lodash.uniqby": "^4.7.0",
     "mapbox-gl": "1.13.2",