KDE Frameworks 5.58.0

[David Edmundson]

>Python bindings for kcoreaddons don't build:

Urgh, I clicked ship it on https://phabricator.kde.org/D20007 because
it was Monday and I assumed tagging had just happened. (I should have
checked, sorry)
The windows side of that code was written blindly, and I did some last
minute fixes to make it compile, but the unit test fails there.

It might be worth rolling the 5.58 tag to
8ca557510d4e8a83b800c6545dac158f8634c7b3 . Then we have a month to fix
it properly.

David