Enhancement: Improve handling of target directory

[funnelfiasco]

I suggest making the directory an optional part of kusari repo scan. We can assume that most users will scan their $CWD and if not, they can specify --target=<DIR>. Adding a --target option also gives users the ability to use generate-config to write to a non-$CWD directory (e.g. kusari configuration generate-config --directory ~/devel/kusari-cli).

I'm leaning toward making this a global option, even though it wouldn't be relevant to every command, because adding it separately in multiple commands becomes a larger maintenance burden.

[funnelfiasco]

Marking this as blocked by #60 because we need to solve that in order to cleanly solve this.

[funnelfiasco]

The "bug" in my original issue was a misunderstanding on my part. Edited the issue description to make it purely enhancement.

[jeffmendoza]

This looks good, thanks for pushing for consistency here,

I'm leaning toward making this a global option, even though it wouldn't be relevant to every command, because adding it separately in multiple commands becomes a larger maintenance burden.

Yes, makes sense.