[pass] [PATCH] Added 'rename' command

[Jason A. Donenfeld]

Well I've made things slightly more batshitinsane and added support
for reencrypting the password when it gets to its destination. While I
was at it, I added copy, since when copying things into a new folder,
we need reencryption to occur too, which means the normal file system
tools become insufficient, which means... Which means ugh.

Which means this is why I held off on implementing "team pass" for so
long, because I knew it would necessitate tools like "pass mv" and
"pass cp" to be "complete", and well, here we are, and now they're
there.

http://git.zx2c4.com/password-store/commit/?id=586f6bd1eb32766168645d0582839dbf36e7f205

So, ugh. I've written it; it's there; it should be mostly debugged
(BUT I'M SURE I SCREWED UP SO PLEASE STRESS TEST IT). But do we
actually want this?

On one hand, it's additional file-manager bloat that pass is supposed
to avoid in the first place. On the other hand, it becomes very handy
when using team pass, such as, "pass cp Managers/website
Sysadmin/website", or "pass mv OriginalSubcontractor/website
NewSubcontractor/website", since it takes care of the reencryption
when different subdirectories have different .gpg-id files.

I'm torn.