refactore: create feature modules (#387)

* add @angular/cli to the project

* increase nodejs version -> 8.2.1

* add lerna

* merge web and shared module

* move electron module into packages as uhk-agent

Electron agent functionality is not working

* delete symlinker

* convert private properties to public of component if used in html

* revert uhk-message.component

* fix component path

* fix the correct name of the uhk-message.component.scss

* building web and electron module

* delete uhk-renderer package

* handle device connect disconnect state

* add privilege detection

* fix set privilege functionality

* turn back download keymap functionality

* add bootstrap, select2 js and fix null pointer exception

* turn back upload data to keyboard

* fix send keymap

* fix test-serializer

* add missing package.json

* merging

* fix appveyor build

* fix linting

* turn back electron storage service

* commit the missing electron-datastorage-repository

* update node to 8.3.0 in .nvmrc and log node version in appveyor build

* set exact version number in appveyor build

* vertical align privilege and missing device components

* set back node version to 8 in appveyor

* move node-usb dependency from usb dir to root

maybe it is fix the appveyor build

* revert usb to root

* fix electron builder script

* fix electron builder script

* turn off electron devtools

* remove CTRL+U functionality

* fix CTRL+o

* fix lint error

* turnoff store freeze

* start process when got `Error: EPERM: operation not permitted` error

* move files from root usb dir -> packages/usb

packages/uhk-agent/src/dev-extension.ts

@@ -0,0 +1,22 @@
+/// <reference path="./custom_types/electron-is-dev.d.ts"/>
+
+/*
+ * Install DevTool extensions when Electron is in development mode
+ */
+import { app } from 'electron';
+import * as isDev from 'electron-is-dev';
+
+if (isDev) {
+
+    app.once('ready', () => {
+
+        const { default: installExtension, REDUX_DEVTOOLS } = require('electron-devtools-installer');
+
+        installExtension(REDUX_DEVTOOLS)
+            .then((name: string) => console.log(`Added Extension:  ${name}`))
+            .catch((err: any) => console.log('An error occurred: ', err));
+
+        require('electron-debug')({ showDevTools: true });
+    });
+
+}