add noctalia and sdbus-cpp

[plavpixel]

Description

user/noctalia: Noctalia desktop shell. Its purpose is to provide a easily configurable, unified Linux desktop experience without using separate bars, notification centers, settings menu, etc. Required 3 simple patches to remove GNU/libstdc++-isms and be more portable.
user/sdbus-cpp: Dependency for Noctalia. It is a modern dbus library which is also being used by other wayland desktop components.

Checklist

Before this pull request is reviewed, certain conditions must be met.

The following must be true for all changes:

• I have read CONTRIBUTING.md
• I acknowledge that overtly not following the above or the below will result in my pull request getting closed
• I acknowledge https://gts.chimera-linux.org/@chimera/statuses/01KWARHE1BXBMXB8WPXK0BBM1B (temporary)

The following must be true for template/package changes:

• I have read Packaging.md
• I have built and tested my changes on my machine

The following must be true for new package submissions:

• I will take responsibility for my template and keep it up to date

[jcgruenhage]

Started using this yesterday, quite nice :)

[q66]

we build tests

make sure they work