Correctly include `authtime` and `etype` in ticket conveter

[dwelch-r7]

Couple of minor changes to the ticket converter, I noticed that authtime was missing and etype was set to 0 on a ticket I was converting to the kirbi format so I've added changes here to pull those out of the ccache credential

Verification steps

• [ ] Generate a ccache file e.g. ./ticketer.py -nthash <krbtgt/service nthash> -domain-sid <your domain SID> -domain <your domain FQDN> baduser
• [ ] Convert to kirbi format e.g. ./ticketConverter.py baduser.ccache baduser.kirbi
• [ ] Check the contents to see that the kirbi file has the same authtime/etype values as the ccache file