Fixed NPE when setLocationShared is called before init

* Also added shareLocation check in registerUser

Author: jkasten2

OneSignalSDK/onesignal/src/main/java/com/onesignal/OneSignal.java

@@ -790,7 +790,7 @@ public void run() {
             userState.set("carrier", osUtils.getCarrierName());
             userState.set("rooted", RootToolsInternalMethods.isRooted());
 
-            if (lastLocationPoint != null)
+            if (shareLocation && lastLocationPoint != null)
                userState.setLocation(lastLocationPoint);
 
             OneSignalStateSynchronizer.postUpdate(userState, sendAsSession);

OneSignalSDK/onesignal/src/main/java/com/onesignal/OneSignalStateSynchronizer.java

@@ -226,6 +226,9 @@ static boolean stopAndPersist() {
    }
 
    static void clearLocation() {
+      if (appContext == null)
+         return;
+      
       getToSyncUserState().clearLocation();
       getToSyncUserState().persistState();
    }