Update encoding.py
Update encoding.py

AFI/SAFI family is now added in the JSON message.
fugitifduck/exabgp,earies/exabgp,lochiiconnectivity/exabgp,earies/exabgp,lochiiconnectivity/exabgp,lochiiconnectivity/exabgp,PowerDNS/exabgp,PowerDNS/exabgp,blablacar/exabgp,earies/exabgp,fugitifduck/exabgp,dneiter/exabgp,dneiter/exabgp,benagricola/exabgp,benagricola/exabgp,benagricola/exabgp,blablacar/exabgp,dneiter/exabgp,blablacar/exabgp,fugitifduck/exabgp,PowerDNS/exabgp