添加插件目录

package.json

@@ -6,7 +6,8 @@
   "style": "dist/artplayer.css",
   "scripts": {
     "dev": "cross-env NODE_ENV=development rollup -c -m -w",
-    "build": "cross-env NODE_ENV=production rollup -c"
+    "build": "cross-env NODE_ENV=production rollup -c",
+    "test": "echo \"Error: no test specified\" && exit 1"
   },
   "repository": {
     "type": "git",
@@ -32,6 +33,7 @@
     "browser-env": "^3.2.5",
     "cross-env": "^5.2.0",
     "cssnano": "^4.1.7",
+    "lerna": "^3.4.3",
     "node-sass": "^4.9.4",
     "rollup": "^0.67.0",
     "rollup-plugin-babel": "^4.0.3",