[Feature request] Option to ask for ipv6 neighbors only

[lambtho12]

Some people are forced to use ipv6 neighbors due to their ISP restrictions.
IcTinder could have a configuration option to ask for only ipv6 neighbors. This would avoid peering with ipv4 and ending up with no traffic between nodes.

[MaKla89]

Since ICT seems to not be working in general with cross-ip-version, ICTinder could easily check whether the local hostname (public address) resolves to ipv4 or ipv6 and only look for matching neighbors. This would skip the part where an option needs to be implemented.