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-common/src/util/index.ts

@@ -0,0 +1,39 @@
+export { Constants } from './constants';
+export { IpcEvents } from './ipcEvents';
+
+// Source: http://stackoverflow.com/questions/13720256/javascript-regex-camelcase-to-sentence
+export function camelCaseToSentence(camelCasedText: string): string {
+    return camelCasedText.replace(/^[a-z]|[A-Z]/g, function (v, i) {
+        return i === 0 ? v.toUpperCase() : ' ' + v.toLowerCase();
+    });
+}
+
+export function capitalizeFirstLetter(text: string): string {
+    return text.charAt(0).toUpperCase() + text.slice(1);
+}
+
+/**
+ * This function coerces a string into a string literal type.
+ * Using tagged union types in TypeScript 2.0, this enables
+ * powerful typechecking of our reducers.
+ *
+ * Since every action label passes through this function it
+ * is a good place to ensure all of our action labels
+ * are unique.
+ */
+
+const typeCache: { [label: string]: boolean } = {};
+
+export function type<T>(label: T | ''): T {
+    if (typeCache[<string>label]) {
+        throw new Error(`Action type "${label}" is not unique"`);
+    }
+
+    typeCache[<string>label] = true;
+
+    return <T>label;
+}
+
+export function runInElectron() {
+    return window && (<any>window).process && (<any>window).process.type;
+}