Add otp (two factor authentication) support

[figgyc]

This is just a minor feature request.

[annejan]

@figgyc OTP secrets can be stored in pass or QtPass

If you mean OTP for unlocking gpg I'm afraid the request is out of scope, since unlocking gpg is handled by the gpg subsystem.

[figgyc]

I know that what i'm trying to say is is there a way for qtpass to generate secrets from the code?

[annejan]

There seems to be a pass extension for OTP handling https://github.com/tadfisher/pass-otp
I'll have a look to see if there is a convenient way to incorporate this into QtPass

[jsmestad]

Would love to see this happen!