Make x11-themes/adwaita-qt[45] slave ports of x11-themes/adwaita-common and update to 0.99

[tcberner]

Summary

• Update to 0.99
• Make them all slaves
• Take maintainership

I think QT[45]_USES and QT[45]_PLIST could be somehow stuck into one, however the best thing I could come up with was ${OPTIONS_SLAVE}_USES=... which would however also set it for the -common port...

[tcberner]

Combine USES and PLIST.. ok, did save one line...

[tcberner]

Update to 1.0.

Is this change non-invasive enough for implicit?

[rakuco]

x11-themes/adwaita-common/Makefile

28 ↗

(On Diff #28964)

At first this looks a bit confusing, as it appears you're doing COMMON_USES=cmake:outsource [...]. I think a comment clarifying what's being done here with ?= makes sense.