Extend support for nordic languages with Sami

Add access (via ralt combination) of Sami characters
into Danish, Norwegian and Swedish mappings.
Update Finnish mapping by fixing wrong Sami characters,
removing wrong ralt+shift mappings and adding support
with capslock+ralt for capital Sami's.
Remove unnecessary swap of MINUS and SLASH key
mapping in kcm.

Change-Id: I872ae2ad31272e8cf55ae1db01c7e30c6a40d5bc
Signed-off-by: Olivier Gay <ogay@logitech.com>
Signed-off-by: Manuel Carthoblaz <mcarthob@logitech.com>
Signed-off-by: Mathieu Meisser <mmeisser@logitech.com>