Support software MFA value in .netrc

[iainelder]

I love the idea of this tool, but I can't use it in environments where I don't have a hardware MFA key configured.

If I'm not the administrator of the SSO instance, that may be outside of my control.

It's great that the authentication details are configurable via file. I think this input could be extended to support the software MFA case.

It could just store a one-time value and pass whatever is stored in the file.

I can use another tool such as the 1Password CLI to generate the correct one-time value from the MFA configuration, and use a script to write the correct configuration just in time.

If Golang has a library to generate OTP codes, then maybe it could handle that part too. In this case, the .netrc file would contain the OTP configuration and would not have to be generated for every login.