Start @xterm scope with core and webgl addons

addons/addon-webgl/webpack.config.js

@@ -0,0 +1,39 @@
+/**
+ * Copyright (c) 2019 The xterm.js authors. All rights reserved.
+ * @license MIT
+ */
+
+const path = require('path');
+
+const addonName = 'WebglAddon';
+const mainFile = 'addon-webgl.js';
+
+module.exports = {
+  entry: `./out/${addonName}.js`,
+  devtool: 'source-map',
+  module: {
+    rules: [
+      {
+        test: /\.js$/,
+        use: ["source-map-loader"],
+        enforce: "pre",
+        exclude: /node_modules/
+      }
+    ]
+  },
+  resolve: {
+    modules: ['./node_modules'],
+    extensions: [ '.js' ],
+    alias: {
+      common: path.resolve('../../out/common'),
+      browser: path.resolve('../../out/browser')
+    }
+  },
+  output: {
+    filename: mainFile,
+    path: path.resolve('./lib'),
+    library: addonName,
+    libraryTarget: 'umd'
+  },
+  mode: 'production'
+};