feat: allow passing data structures between commanders

[TorchedSammy]

just like how we have powershell, nu, murex, etc trying to market to people with commands that can pass full data structures like json or whatever instead of just a plain unix pipe of output, commanders (hilbish commands written in lua) should be able to support this.

this should be possible by just setting the appropriate values in the context used for the sh runner

[TorchedSammy]

by data structure(s), since we're in lua this could probably just be a lua table.