Signoff and signature feature for Git

[SDAChess]

Hello T3 Team,

Thank you for your amazing work with t3code. In my daily usage, I have to sign and add DCO certificates to my open-source contributions. Would it be possible, to add an option under the Git section in order to enable -s and -S options. -S is not that big of a deal because it can be configured through git config but -s cannot.

Thanks a lot for your time!