fix(lib): 解决打包后包含es6代码问题

fix #29

Author: lljj-x

packages/lib/babel.config.js

@@ -1,3 +1,3 @@
 module.exports = {
-    presets: ['@lljj/babel-preset-app']
+    presets: ['@lljj/babel-preset']
 };

packages/lib/utils/package.json

@@ -2,6 +2,7 @@
     "name": "@lljj/vjsf-utils",
     "version": "0.5.0",
     "description": "vue json schema form 使用的基础utils工具类",
+    "private": false,
     "keywords": [
         "@lljj/vjsf-utils",
         "vue",
@@ -15,7 +16,6 @@
     "repository": "https://github.com/lljj-x/vue-json-schema-form",
     "homepage": "https://github.com/lljj-x/vue-json-schema-form",
     "license": "Apache-2.0",
-    "private": true,
     "author": "Liu.Jun",
     "browserslist": [
         "> 1%",

packages/lib/vue2/vue2-core/package.json

@@ -10,12 +10,12 @@
         "form",
         "jsonSchema"
     ],
+    "private": false,
     "dependencies": {
         "@lljj/vjsf-utils": "0.5.0"
     },
     "repository": "https://github.com/lljj-x/vue-json-schema-form",
     "homepage": "https://github.com/lljj-x/vue-json-schema-form",
-    "private": true,
     "license": "Apache-2.0",
     "author": "Liu.Jun",
     "browserslist": [

packages/lib/vue2/vue2-form-element/babel.config.js

@@ -0,0 +1,3 @@
+module.exports = {
+    presets: ['@lljj/babel-preset']
+};