Catch exceptions raised when starting foreground service on Android

HaylLtd#199

If an exception is raised when starting the foreground service this causes the app to crash.

One cause of exceptions can be if the user revokes the location or notification permissions whilst the foreground service is running.

android/common/src/main/java/com/marianhello/bgloc/service/LocationServiceImpl.java

@@ -417,8 +417,13 @@ public void startForeground() {
                 mProvider.onCommand(LocationProvider.CMD_SWITCH_MODE,
                         LocationProvider.FOREGROUND_MODE);
             }
-            super.startForeground(NOTIFICATION_ID, notification);
-            mIsInForeground = true;
+            try{
+                super.startForeground(NOTIFICATION_ID, notification);
+                mIsInForeground = true;
+            }catch(Exception e){
+                mIsInForeground = false;
+                logger.error("startForeground: exception", e);
+            }
         }
     }