feat: Support Apple Development/Distribution identities

[sethlu]

Follow up to the feature request #227

Following the introduction of "Apple Development" and "Apple Distribution" signing identities, we can extend the existing auto-discovery to support these identities:

• Targeting inside the Mac App Store
  • For development: Try Apple Development, then Mac Developer
  • For distribution: Try Apple Distribution, then 3rd Party Mac Developer Application
• Targeting outside the Mac App Store
  • Always try Developer ID Application for development/distribution

Closing #183 for now, since there isn't much complain using Developer ID Application for both development and distribution of apps outside the Mac App Store.

[sethlu]

@mahnunchik Sorry about the wait. If you have the recent signing identities on your end, can you help test if this PR works? Thanks in advance!

[mahnunchik]

@sethlu I may confirm it works but for signing .pkg the certificate 3rd Party Mac Developer Installer is still selected.

[sethlu]

@mahnunchik Thanks for testing the changes!

I don't think it's documented whether the Apple Distribution certificate applies to signing the installer package? (Ref: https://help.apple.com/xcode/mac/current/#/dev3a05256b8) Therefore I didn't modify the app flattening script to use the more recent certificate 🤔

[mahnunchik]

@sethlu let's try to push this feature to production ;)

[MarshallOfSound]

Conflicting with the rewrite, if this change is still applicable please raise a new pull request. Apologies for the conflicts