Adding unminified bundle to dist

package.json

@@ -1,12 +1,12 @@
 {
   "name": "simple-keyboard",
-  "version": "2.14.3",
+  "version": "2.15.0",
   "description": "On-screen Javascript Virtual Keyboard",
   "main": "build/index.js",
   "types": "build/index.d.ts",
   "scripts": {
     "start": "node scripts/start.js",
-    "build": "node scripts/build.js",
+    "build": "node scripts/build.js && node scripts/buildUnminified.js",
     "demo": "node scripts/demo.js",
     "test": "node scripts/test.js",
     "postinstall": "node bin/postinstall",
@@ -83,6 +83,8 @@
     "postcss-loader": "3.0.0",
     "postcss-preset-env": "6.5.0",
     "postcss-safe-parser": "4.0.1",
+    "prettier": "^1.16.4",
+    "prettier-webpack-plugin": "^1.2.0",
     "react": "^16.8.1",
     "react-app-polyfill": "^0.2.0",
     "react-dev-utils": "^7.0.1",
@@ -91,6 +93,7 @@
     "sass-loader": "7.1.0",
     "style-loader": "0.23.1",
     "terser-webpack-plugin": "1.2.2",
+    "uglifyjs-webpack-plugin": "^2.1.1",
     "url-loader": "1.1.2",
     "webpack": "4.29.3",
     "webpack-dev-server": "3.1.14",