Add ability to receive iOS APNS notifications

[theromis]

Tested versions

4.3

System information

Macos

Issue description

Currently iOS godot can't register/receive APNS notifications

Steps to reproduce

Just try to get APNS

Minimal reproduction project (MRP)

Current AppDelegate implementation doesn't have didRegisterForRemoteNotificationsWithDeviceToken
handler https://github.com/godotengine/godot/blob/master/platform/ios/app_delegate.mm#L69

below is swift portion of currently working implementation:

   func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
       let tokenParts = deviceToken.map { data in String(format: "%02.2hhx", data) }
       let token = tokenParts.joined()
       os_log(.debug, "didRegisterForRemoteNotificationsWithDeviceToken: \(token)")
       apnsTokenRegister(token: token)
   }

[AThousandShips]

Feature proposals are tracked here, this is for bugs. Please open a proposal instead.

[theromis]

godotengine/godot-proposals#10633
created