Feature/ewon flexy navigation (#2)

* init navigation flexy registration

* register user to talk2m platform

* fetch flexy gateways from talk2m

* data-grid to show ewon flexy devices

* Group ewon devices per pool

* refactor logging and alert notification.

* Add token to forms for datamailbox integration.
Fix logout action.

* Visualize not integrated devices

* add datamailbox tab

* Add Header to Data Mailbox Settings

* feature: Is Device already registered
Check each device if it is already registered or not. Visualize the status of integration.

* feature: Fully register selected devices to cumulocity

* feature: progress bar of registration process and delete already exists device request to avoid errors.

* feature: Assign registered device to group pool name

app.module.ts

@@ -2,7 +2,7 @@ import { NgModule } from '@angular/core';
 import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
 import { RouterModule as NgRouterModule } from '@angular/router';
 import { UpgradeModule as NgUpgradeModule } from '@angular/upgrade/static';
-import { CoreModule, RouterModule } from '@c8y/ngx-components';
+import { CoreModule, NavigatorService, RouterModule } from '@c8y/ngx-components';
 import { AssetsNavigatorModule } from '@c8y/ngx-components/assets-navigator';
 import { SubAssetsModule } from '@c8y/ngx-components/sub-assets';
 import { DeviceGridExampleModule } from '@c8y/ngx-components/device-grid-example';
@@ -21,7 +21,8 @@ import {
 import { BinaryFileDownloadModule } from '@c8y/ngx-components/binary-file-download';
 import { SearchModule } from '@c8y/ngx-components/search';
 import { LoraProtocolModule } from '@c8y/ngx-components/protocol-lora';
-
+//custom modules
+import { FlexyRegistrationModule } from './src/modules/ewon-flexy-registration/ewon-flexy-registration.module'
 @NgModule({
  imports: [
  // Upgrade module must be the first
@@ -45,8 +46,11 @@ import { LoraProtocolModule } from '@c8y/ngx-components/protocol-lora';
  BinaryFileDownloadModule,
  SearchModule,
  LoraProtocolModule,
- SubAssetsModule
- ]
+ SubAssetsModule,
+ //custom modules
+ FlexyRegistrationModule
+ ],
+ providers: []
 })
 export class AppModule extends HybridAppModule {
  constructor(protected upgrade: NgUpgradeModule) {