feat: provide usable UMD builds for all packages (#2141)

packages/netlify-cms-default-exports/package.json

@@ -0,0 +1,36 @@
+{
+  "name": "netlify-cms-default-exports",
+  "version": "2.0.1",
+  "description": "NetlifyCMS default exports",
+  "repository": "https://github.com/netlify/netlify-cms/tree/master/packages/netlify-cms-default-exports",
+  "bugs": "https://github.com/netlify/netlify-cms/issues",
+  "main": "dist/netlify-cms-editor-component-image.js",
+  "license": "MIT",
+  "keywords": [
+    "netlify",
+    "netlify-cms",
+    "editor",
+    "component"
+  ],
+  "sideEffects": false,
+  "scripts": {
+    "watch": "webpack -w",
+    "develop": "npm run watch",
+    "build": "cross-env NODE_ENV=production webpack",
+    "build:dev": "cross-env NODE_ENV=development webpack"
+  },
+  "dependencies": {
+    "@emotion/core": "^10.0.9",
+    "@emotion/styled": "^10.0.9",
+    "immutable": "^3.7.6",
+    "lodash": "^4.17.11",
+    "moment": "^2.24.0",
+    "prop-types": "^15.7.2",
+    "react-immutable-proptypes": "^2.1.0",
+    "uuid": "^3.3.2"
+  },
+  "peerDependencies": {
+    "react": "^16.8.4",
+    "react-dom": "^16.8.4"
+  }
+}

packages/netlify-cms-default-exports/src/index.js

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+import css from '@emotion/css';
+import {
+  withEmotionCache,
+  CacheProvider,
+  ThemeContext,
+  jsx,
+  Global,
+  keyframes,
+  ClassNames,
+} from '@emotion/core';
+import EmotionStyled from '@emotion/styled';
+import Immutable from 'immutable';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import Lodash from 'lodash/lodash';
+import Moment from 'moment';
+import PropTypes from 'prop-types';
+import React from 'react';
+import ReactDOM from 'react-dom';
+import * as UUId from 'uuid';
+
+const EmotionCore = {
+  css,
+  withEmotionCache,
+  CacheProvider,
+  ThemeContext,
+  jsx,
+  Global,
+  keyframes,
+  ClassNames,
+};
+export const NetlifyCmsDefaultExports = {
+  EmotionCore,
+  EmotionStyled,
+  Immutable,
+  ImmutablePropTypes,
+  Lodash,
+  Moment,
+  PropTypes,
+  React,
+  ReactDOM,
+  UUId,
+};
+export {
+  EmotionCore,
+  EmotionStyled,
+  Immutable,
+  ImmutablePropTypes,
+  Lodash,
+  Moment,
+  PropTypes,
+  React,
+  ReactDOM,
+  UUId,
+};

packages/netlify-cms-default-exports/webpack.config.js

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+const { getConfig } = require('../../scripts/webpack.js');
+
+module.exports = getConfig();