update gulp

gulpfile.js

 
   const exportNamespace = `
         export const __namespace = {
-            Cesium: exports.Cesium
+            Cesium: exports.Cesium,
+            Supercluster: exports.Supercluster
         }
      `
 

libs/index.js

  **/
 
 import * as Cesium from '@cesium/engine'
+import Supercluster from 'supercluster'
 
-export { Cesium }
+export { Cesium, Supercluster }

src/index.js

     registerLib('echarts', options['echarts'])
   }
 
+  if (options['Supercluster']) {
+    registerLib('Supercluster', options['Supercluster'])
+  } else {
+    registerLib('Supercluster', this['__namespace']['Supercluster'])
+  }
+
   this['__cmdOut'] && this['__cmdOut']()
 
   return new Promise((resolve, reject) => {

src/modules/layer/type/ClusterLayer.js

  * @Author : Caven Chen
  */
 
-import Supercluster from 'supercluster'
-import { Cesium } from '../../../namespace'
+import { Cesium, Supercluster } from '../../../namespace'
 import State from '../../state/State'
 import Layer from '../Layer'
 import Parse from '../../parse/Parse'

src/namespace/index.js

 export const turf = getLib('turf')
 
 export const echarts = getLib('echarts')
+
+export const Supercluster = getLib('Supercluster')