add build script to playground

Author: rkusa

playground/.gitignore

@@ -0,0 +1,2 @@
+/public/vs
+/public/bundle.js

playground/Makefile

@@ -0,0 +1,5 @@
+build:
+	npm install
+	rm -rf ./public/vs
+	cp -r node_modules/monaco-editor/min/vs ./public/
+	npm run build

playground/package.json

@@ -2,7 +2,7 @@
   "name": "pdfjs-playground",
   "private": "true",
   "scripts": {
-    "build": "webpack --progress --colors --config webpack.config.js"
+    "build": "webpack --config webpack.config.js"
   },
   "devDependencies": {
     "babel-core": "^6.24",

playground/index.html playground/public/index.html

@@ -9,7 +9,7 @@ module.exports = {
   mode: 'production',
 
   output: {
-    path: __dirname,
+    path: path.join(__dirname, 'public'),
     filename: 'bundle.js',
   },