Import: Support Buttercup format (JSON, BCUP)

Feature name

Feature function

  • What will this feature do differently? facilitate export and import file between password manager
  • What benefits will this feature bring? integrate between platforms easily

As far as I see, Buttercup has only CSV as an export format (GitHub - buttercup/buttercup-exporter: Export Buttercup vaults), and that is already supported by Bitwarden.

BCUP is the Buttercup database file, and no other import format extends to the database files themselves, as it seems.