Add action to counsel-projectile-find-file to visit directory

[manuel-uberti]

This PR aims to mirror abo-abo/swiper#2057

If you need me to change anything, feel free to ask.

[ericdanan]

Thanks for the PR. You can already open the current counsel-projectile-find-file (or counsel-projectile) candidate's directory with dired by hitting M-o m RET:

• M-o m will open counsel-find-file at the current candidate's directory,

• Since the first candidate ./ is preselected, RET will open the directory in dired.

That also gives access to other counsel-find-file actions such as copy or move so opening the directory in dired is sometimes not necessary. Only downside I see is one additional keystroke to open dired, which is not a big deal for me. What do you think?

[manuel-uberti]

Didn't know about M-o m, to be honest.

It's a bit quicker with the code in the PR, but I do not want to duplicate an existing functionality. It's already fine as you implemented, so I'm closing this and will be using your solution. :)

Thank you!

[ericdanan]

You're welcome. Keep in mind that you can simply add the action in your setup if you want the extra speed.