mock position detection for iOS15+ (#180)

Author: hmcheu

README.md

@@ -108,6 +108,9 @@ You need to include `NSLocationWhenInUseUsageDescription` and `NSLocationAlwaysA
 
 In order to enable geolocation in the background, you need to include the 'NSLocationAlwaysUsageDescription' key in Info.plist and add location as a background mode in the 'Capabilities' tab in Xcode.
 
+IOS >= 15 Positions will also contain a `mocked` boolean to indicate if position was created from a mock provider / software.
+
+
 ### Android
 
 To request access to location, you need to add the following line to your app's `AndroidManifest.xml`:

ios/RNCGeolocation.m

@@ -369,7 +369,14 @@ - (void)locationManager:(CLLocationManager *)manager
 {
   // Create event
   CLLocation *location = locations.lastObject;
+
+  BOOL mocked = NO;
+  if (@available(iOS 15.0, *)) {
+    mocked = location.sourceInformation.isSimulatedBySoftware;
+  }
+
   _lastLocationEvent = @{
+                         @"mocked": @(mocked),
                          @"coords": @{
                              @"latitude": @(location.coordinate.latitude),
                              @"longitude": @(location.coordinate.longitude),