Notifier

Addresses the following:

#1 - Move to ArgumentParser - but now minimum OS is 10.13.
#17 - Swift Compile Error

Additionally, v3 will be out in the next few months. This will require macOS 10.15+ and as such will drop support for the NSUserNotifications API.

But will allow us to address some of the outstanding issues.

What's Changed

• Add additional note for Signing by @Chalcahuite in #13
• Argument parser migration by @macmule in #20

New Contributors

• @Chalcahuite made their first contribution in #13

Full Changelog: 2.2.3...2.3