MOBILE-2957 config: Add variable to enable analytics

src/config.json

@@ -80,5 +80,6 @@
     "statusbarbgandroid": "#df7310",
     "statusbarlighttextandroid": true,
     "statusbarbgremotetheme": "#000000",
-    "statusbarlighttextremotetheme": true
+    "statusbarlighttextremotetheme": true,
+    "enableanalytics": false
 }

src/core/pushnotifications/providers/pushnotifications.ts

@@ -303,7 +303,7 @@ export class CorePushNotificationsProvider {
     logEvent(name: string, data: any, filter?: boolean): Promise<any> {
         const win = <any> window; // This feature is only present in our fork of the plugin.
 
-        if (win.PushNotification && win.PushNotification.logEvent) {
+        if (CoreConfigConstants.enableanalytics && win.PushNotification && win.PushNotification.logEvent) {
             return new Promise((resolve, reject): void => {
                 win.PushNotification.logEvent(resolve, (error) => {
                     this.logger.error('Error logging firebase event', name, error);