Automatic {de,en}crypt

[rranelli]

In my local emacs dotfiles I have added some functions & hooks to:

• automatically decrypt ansible vault files when opening a vault file
• encrypting the file prior to save

Would you be interested in adding such functionality? If so, I would gladly issue a PR.

Thank you for the great work ;)

[k1LoW]

It's nice idea! LGTM