update: 支付宝小程序支持插件配置

packages/webpack-uni-pages-loader/lib/platforms/mp-alipay.js

@@ -62,14 +62,20 @@ module.exports = function (pagesJson, manifestJson) {
     app.subPackages.push(subPackages[root])
   })
 
-  copyToJson(app, pagesJson, pagesJson2AppJson)
-
+  copyToJson(app, pagesJson, pagesJson2AppJson)
+  
+  const platformJson = manifestJson['mp-alipay'] || {}
+  if (hasOwn(platformJson, 'plugins')) {
+    app.plugins = platformJson.plugins
+  }
+  
   if (app.usingComponents) {
     updateAppJsonUsingComponents(app.usingComponents)
   }
 
   const project = Object.assign({}, manifestJson['mp-alipay'] || {})
-  delete project.usingComponents
+  delete project.usingComponents
+  delete project.plugins
 
   return [{
     name: 'app',