symbols/de: Add exotic German (Noted) layout

Add the newest layout of the German Neo keyboard layout family. Noted is a layout designed to make typing as comfortable and efficient as possible in both German and English. It was developed with the help of a layout optimizer, which is based on the metrics and concepts of ArneBab's optimizer and adapts and extends them.

I switched from Neo 2 via Mine to Noted and I like to see this variant to be available out of the box in Debian/Ubuntu.

Sources:

• https://neo-layout.org/Layouts/noted/
• https://dariogoetz.github.io/noted-layout/

Forwarded: https://gitlab.freedesktop.org/xkeyboard-config/xkeyboard-config/-/merge_requests/681