The Latest Update V5.1.3

NordVPN release new updates every now and then. The latest update is as follows:
- Added new protocol: WireGuard.
- Added facility to choose a specific connection for specific use.
- Added facility to save credentials for a specific connection.
- Added "to be seen" (to be seen) for reconnections.
- Improved the UI, especially the server list.
- Fixed some minor bugs.