#1019 Set Set own visibility on buddilist of others

[ba0645]

When you are on a quest you often have players you helped before which disturb you in a way which makes you mad.
They write you "come" and even if you write you are busy they disturb you again and again. So it would be nice to not be seen as beeing online on your way in buddylists of other players. Also not when typing /who
Is it possible to add a command to make own player visible to these three situations?:
- nobody (Nobody is seeing player in buddylist and with who-command)
- local map (Only Players on same map see player)
- global map (Everyone is seeing player this is just like it behaves now)

Command colud be: /visibility (nobody, local, global)