Pet door icon

[tfischer4765]

Before submitting a new icon request, please confirm the following:

• [x] I have searched all issues to make sure there isn't a request for this icon.
• [x] I have searched the current library to make sure the icon doesn't already exist.
• [x] I understand that brand icons are no longer being added and I can use SimpleIcons for my brand icon needs.
• [x] I only intend to request a single icon (or a few near-identical ones) in this issue.

What would you use this icon for?

To mark controls for and signifiy the status of automatic pet doors.

Give us an example of what this icon might look like.

A stylized pet door, with a hanging flap, e.g. a rounded square with a rotated D-shape. Variants suggesting locked, both way access, ingress only and egress only would be helpful (this is a special requirement for pet doors, which routinely have these options where regular doors do not)