* Add a dummy x86_64 slice to all our native libraries that don't have one. (#6848)
Apple's notarization tool has a bug where they incorrectly flag Mach-O
binaries without an x86_64 slice, so make sure all our libraries have one.
* Jenkinsfile notarization (#6869)
* Add in notarization script for xamarin.mac/xamarin.iOS
* Flatten the list to get rid of the braces
* Add in keychain password
* Add login.keychain back in to access codesigning certificates
* Always sign pkgs, upload notarized copies
* Enable ios notarization and make notarized pkgs public
* Make notarization non-fatal
* Publish GH statuses for notarized PKGs
* Don't forget to declare URI variables for notarized pkgs
* report proper package links
* [jenkins] Improve package reporting.
* Use dummy function name which our tests won't complain about.
Rolf Bjarne Kvinge