@Tim Bozeman
I have implemented invite resend functionality in this issue #27...

@Tim Bozeman
I have implemented invite resend functionality in this issue #2752085: Invite Resend Implementation
I have few more suggestions for invite entity.

• Can we make registration code field non-editable. i.e it should not be visible on frontend. Should be set automatically like created and changed time
• We can add one default invite type that allows to send emails using "invite_by_email". Probably we can do that by creating on invite type and export in config. By this it will be more easy for users to create other
• Changing path of invite creation like "invite/add" "invite/[id]/edit" etc rather than "/admin/structure/invite/add". IMHO, It should be accessible to end users as well, so we should not add "admin/structure" prefix