Add support for pronouns

[arunkannawadi]

Prerequisites

• I have searched for duplicate or closed feature requests
• I am mindful of the project scope

Proposal

Thanks for this great project! I am using this for my research group's webpage and I'd like for us to have an option to add our pronouns. I imagine this would be similar to the role field in authors and can be toggled on/off using a show_pronoun option (similar to show_role).

Motivation and context

This would prevent from users trying to add their pronouns as part of their last name, which is cumbersome.