[RFE] Getting password from self-hosted bitwarden server

[tjyang]

• WHY:
  • Some org has use bitwarden tool (100% open-source) to manage their admin passwords.
• Reference:
  • https://bitwarden.com/

[cyd01]

There are so many password managers.
KiTTY can be integrated to all. And above all don't forget, login with password is not a good idea. You should use private keys instead.
So that I've decided not to manage external password manager.
But feel free to propose a merge request.