Show Single Credential to Screen

[stuieordie]

Feature request

It would be nice to have a way to get a single password from the vault out so it could be used without having to interactively start the app

vault --password 'my vault key' --name 'my credential' --show

or something like that

[gabfl]

@stuieordie if you want to file a Pull Request, please feel free to. Otherwise, I do think it's a good idea and may do it when I have time but I cannot guarantee a timeline