Add German+ÅÆØ compatibility layout with MessageEase

MessageEase does not have own layouts for languages that uses Nordic
characters (æ, ø and å as HTML entities), instead
these are covered with a layout called "German + ÅÆØ", which is
basically the German layout with these changes:

(1) Top swipe on upper left key A is Å
(2) Top swipe on center left key H is Æ instead of Ü
(3) Top swipe on lower left key T is Ø
(4) Top swipe on lower left key in numeric keyboard is umlaut/diaeresis
(5) Bottom swipe on lower left key T does not show eszett

If it hadn't been for (2), these changes could have been incorporated
directly in the "deutsch", but alas. (4) is necessary to type a
general umlaut instead. Diff DEMessageEase against DENordicMessageEase
to see definition changes between this and the "deutsch" layout.

Additionally, the '>' symbol is on a right, not bottom-right swipe on
the 9 key, the bottom-right swipe of 8 is a ':' instead of an '-', the
bottom-right of 7 is tabulator instead of ':', and '-' is located on
the right swipe of 1; to be located on the same keys as they are on
the main keyboard. These changes are collected in a new numeric layout
called NordicMessageEaseNumeric.

Perhaps "deutsch nordic messageease" would have been a name more in
line with the others, but I chose to go with "deutsch + æøå
messageease" to make it easier to find for people who are coming from
MessageEase and probably will be looking for something similar to the
"German+ÆØÅ" name.