feat: use rollup to build component

package.json

@@ -11,7 +11,7 @@
     "packages"
   ],
   "scripts": {
-    "bootstrap": "yarn || npm i",
+    "bootstrap": "yarn || npm i && cd ./packages/vant-css/ && yarn || npm i && cd ../../",
     "dev": "npm run build:file && webpack-dev-server --inline --config build/webpack.config.dev.js --content-base ./",
     "build:file": "node build/bin/build-entry.js",
     "build:utils": "cross-env BABEL_ENV=utils babel src --out-dir lib --ignore src/index.js --presets=es2015",
@@ -27,7 +27,8 @@
     "test": "karma start test/unit/karma.conf.js --single-run",
     "test:coverage": "open test/unit/coverage/lcov-report/index.html",
     "test:watch": "karma start test/unit/karma.conf.js",
-    "release": "npm run bootstrap && sh build/release.sh"
+    "release": "npm run bootstrap && sh build/release.sh",
+    "rollup": "rollup -c ./build/rollup.component.config.js"
   },
   "repository": {
     "type": "git",
@@ -53,6 +54,7 @@
     "babel-cli": "^6.14.0",
     "babel-core": "^6.25.0",
     "babel-loader": "^7.1.1",
+    "babel-plugin-external-helpers": "^6.22.0",
     "babel-plugin-module-resolver": "^2.7.1",
     "babel-plugin-syntax-jsx": "^6.18.0",
     "babel-plugin-transform-runtime": "^6.15.0",
@@ -60,6 +62,7 @@
     "babel-polyfill": "^6.23.0",
     "babel-preset-es2015": "^6.16.0",
     "babel-runtime": "^6.25.0",
+    "babelrc-rollup": "^3.0.0",
     "chai": "^4.1.1",
     "cheerio": "^0.22.0",
     "codecov": "^2.2.0",
@@ -97,6 +100,11 @@
     "precss": "^2.0.0",
     "progress-bar-webpack-plugin": "^1.10.0",
     "rimraf": "^2.5.4",
+    "rollup": "^0.45.2",
+    "rollup-plugin-babel": "^3.0.1",
+    "rollup-plugin-commonjs": "^8.1.0",
+    "rollup-plugin-node-resolve": "^3.0.0",
+    "rollup-plugin-vue": "^2.4.1",
     "run-sequence": "^2.1.0",
     "sinon": "^2.4.1",
     "sinon-chai": "^2.12.0",
@@ -115,6 +123,7 @@
     "webpack": "^3.5.1",
     "webpack-dev-server": "^2.7.1",
     "webpack-merge": "^4.1.0",
-    "zan-doc": "0.1.12"
+    "zan-doc": "0.1.12",
+    "zan-rollup-plugin-alias": "1.0.1"
   }
 }