Add smtplib

[joelbarranteswins]

I'd like to propose adding the smtplib module to the repository. smtplib is a Python standard library that provides an SMTP client session object to send emails over the internet. Other popular libraries, like yagmail, rely on smtplib as a dependency.

I believe adding smtplib to the repository would be good to know this module

If you agree with this proposal, please consider submitting an Approve review for this pull request.

Thank you!