Update sample.config and update .whois to include ban length

[MajehOS]

Used Ban Date - Expiration Date since it'll work for older bans too.

[eritbh]

uh right thanks for reminding that issue exists. note to self c279c55 fixes #175

[eritbh]

@mushroom-disaster if you're looking for something else to work on, you're a maintainer so you should have push access to this fork branch, could probably refactor this mess into a function for Mage

[MajehOS]

Could you please include a screenshot of what the new formatting will look like?

[eritbh]

tyty~