WIP: symbols/no: add missing symbols to Sami layout, remove duplicates, and redistribute

The first patch adds missing characters and dead diacritics, when compared to the corresonding Windows layout. The missing symbols were: Â, Õ, €, μ, and the dead ` ´ ^ ¨ ~ and ˇ. Symbols < > and Ŧ were already there but not in their proper places. The patch also removes duplicated symbols and useless symbols.

The second patch then reshuffles some symbols to have them grouped logically, so that it becomes possible to remember where they are (as these symbols are not marked on the keys).

This partially addresses issue #337 (closed).

Signed-off-by: Benno Schulenberg bensberg@telfort.nl