Support --servercert option
The NetworkManager GUI is relatively minimal compared to all the options available when using
openconnect directly from the CLI. One such option, that I would appreciate to be able to set from NM, is
--servercert, which lets one verify the gateway's certificate's fingerprint. Unfortunately I cannot use
--cafile, which is supported, because the name in the certificate does not match the gateway. I know this is wrong but I am not in the position to tell the company to fix their set-up.