added gen-config
added gen-config

- tested manually work with 1 key file
- TODO:
  - add manual test multiple files/passwords
  - add e2e automated tests

Sem-Ver: feature

Signed-off-by: Max Kovgan <cad713733b79804241d4f3544dff9fee1a530333@devopsent.biz>

mvk/sshadder,mvk/sshadder