add a standalone reset_all mechanism

[rigelrozanski]

Makes sense to be able to wipe the working directory (eg. ~/.basecli) without needing to init, right now this can be achieved with the --force-reset flag on init however, if you don't want to init but just wipe a directory clean (aka performing a command like basecli --force-reset) you're going to receive an error for not including the --chainid flag... which makes sense if we were trying to init, but I'm really just trying to reset.

Typical process flow that requires this change:

• reset basecli
• create basecli keys
• copy a basecli key into basecoin genesis
• start basecoin
• init basecli (note if we use --force-reset here we will wipe the keys which we made earlier!)
• perform operations

[ethanfrey]

Yes, need some more work flows.

I like the ideas that init never wipes out the keys. And gives a warning if it will wipe out the seeds.

And then a reset all that wipes out everything.

Let's chat more

[rigelrozanski]

Simply put I think all those ideas are on point let's implement. It's a nice idea to be able to reset seeds with init without wiping keys.

[ethanfrey]

Resolved with PR #29