Bug/auto generated olsrd6 config

* new packages for default values: freifunk-berlin-network-default and freifunk-berlin-olsrd-defaults (should fix #79)
* remove RtTableTunnel* for olsrd6 (SmartGateway is deactivated and therefor we do not need these tunnels and with that we get rid of a deprecation warning during olsrd6 startup)
* refactoring of wizard (separate code into own files)
* add hna6 support for wizard