Webpack (#9391)

* webpack poc, this is not going to work for plugins, dam

* tech: webpack and systemjs for plugins starting to work

* tech: webpack and systemjs combo starting to work

* tech: webpack + karma tests progress

* tech: webpack + karma progress

* tech: working on tests

* tech: webpack

* tech: webpack + karma, all tests pass

* tech: webpack + karma, all tests pass

* tech: webpack all tests pass

* webpack: getting closer

* tech: webpack progress

* webpack: further build refinements

* webpack: ng annotate fixes

* webpack: optimized build fix

* tech: minor fix for elasticsearch

* tech: webpack + ace editor

* tech: restored lodash move mixin compatability

* tech: added enzyme react test and upgraded to react v16

* tech: package version fix

* tech: added testdata to built in bundle

* webpack: sass progress

* tech: prod & dev build is working for the sass

* tech: clean up unused grunt stuff and moved to scripts folder

* tech: added vendor and manifest chunks, updated readme and docs

* tech: webpack finishing touches

scripts/webpack/webpack.test.js

@@ -0,0 +1,23 @@
+const webpack = require('webpack');
+const merge = require('webpack-merge');
+const common = require('./webpack.common.js');
+
+config = merge(common, {
+  devtool: 'inline-source-map',
+  externals: {
+    'react/addons': true,
+    'react/lib/ExecutionEnvironment': true,
+    'react/lib/ReactContext': true,
+  },
+  node: {
+    fs: 'empty'
+  },
+  plugins: [
+    new webpack.SourceMapDevToolPlugin({
+      filename: null, // if no value is provided the sourcemap is inlined
+      test: /\.(ts|js)($|\?)/i // process .js and .ts files only
+    })
+  ]
+});
+
+module.exports = config;