commands: airboss: set hasing functions to default sha1

ssh-agent support only sha1 hashing functions so we have to use that
on the sever side
node.xml: DB: add a view clusters which list the virtual FE and their vlanid
commands: airboss: listmacs now returns hostname and alias with MACs

The user can now see their hostname and their associated aliases
commands: airboss: removed duplicated code using methods in vmexteded