feat(plugin): add Microsoft App Center Push plugin

feat(plugin): add Microsoft App Center Push plugin

src/@ionic-native/plugins/app-center-push/index.ts

@@ -0,0 +1,68 @@
+import { Injectable } from '@angular/core';
+import { Cordova, IonicNativePlugin, Plugin } from '@ionic-native/core';
+import { Observable } from 'rxjs/Observable';
+
+/**
+ * @name App Center Push
+ * @description
+ *
+ * For more info, please see https://docs.microsoft.com/en-us/appcenter/sdk/push/cordova
+ *
+ * @usage
+ * ```typescript
+ * import { AppCenterPush } from '@ionic-native/app-center-push';
+ *
+ *
+ * constructor(private appCenterPush: AppCenterPush) { }
+ *
+ * ...
+ *
+ * this.appCenterPush.setEnabled(true).then(() => {
+ *    this.appCenterPush.addEventListener('My Event').subscribe(pushNotification => {
+ *        console.log('Recived push notification', pushNotification);
+ *    });
+ * });
+ *
+ * ```
+ */
+@Plugin({
+  pluginName: 'AppCenterPush',
+  plugin: 'cordova-plugin-appcenter-push',
+  pluginRef: 'AppCenter.Push',
+  repo:
+    'https://github.com/Microsoft/appcenter-sdk-cordova/tree/master/cordova-plugin-appcenter-push',
+  platforms: ['Android', 'iOS']
+})
+@Injectable()
+export class AppCenterPush extends IonicNativePlugin {
+  /**
+   * Subscribe to an event
+   * @param  {string} eventname Event name
+   * @returns {Observable<any>}
+   */
+  @Cordova({
+    observable: true,
+    clearFunction: 'removeEventListener'
+  })
+  addEventListener(eventname: string): Observable<any> {
+    return;
+  }
+  /**
+   * Check if App Center Push is enabled
+   * @returns {Promise<boolean>}
+   */
+  @Cordova()
+  isEnabled(): Promise<boolean> {
+    return;
+  }
+
+  /**
+   * Enable or disable App Center Push at runtime
+   * @param  {boolean} shouldEnable Set value
+   * @returns {Promise<void>}
+   */
+  @Cordova()
+  setEnabled(shouldEnable: boolean): Promise<void> {
+    return;
+  }
+}