Add secret authentication

[nikolasj]

Please add secret authentication

[Vad1mo]

Can you be a bit more specific?

[nikolasj]

Using the current authentication method I get 405.
I would like to have other authentication options. For example, like here https://github.com/pederhan/harborapi#authentication

[nikolasj]

Hello! Can you add a new authentication method?

[Vad1mo]

we'll look into that