2019-10-14: cisco_eigrp_interface: 
            added suppoert for hmac-sha-256 authentication, moved 'md5' to warn and 'none' to critical.
2019-10-15: cisco_eigrp_peers: 
            add initial supporet for IPv6 peers
            added parser function
2019-10-16: cisco_eigrp_peers
            added support for VRFs
            fixed IPv4 address rendering function