log files

[Gankra]

oranda needs this

orogene has a super complicated/robust solution:

https://github.com/orogene/orogene/blob/main/src/lib.rs#L145-L255 and https://github.com/orogene/orogene/blob/main/src/lib.rs#L295-L306 set up logging, and also automatically always logging to a log file in the cache, then if there's an error, it says "here's where the log file is, if you want it. It also keeps the most recent 5 logs for you in case you wanna go back and see.

oh and it also has all the stuff you need so you can provide the really fancy EnvFilter strings to --loglevel, instead of just warn/info/etc (--loglevel node_maintainer=trace,warn)