[Koha] Moving Curbside Pickup plugin to Koha core

[Jonathan Druart]

Hello,

I have been sponsored to move the Curbside Pickup plugin to Koha core.

If you are using this plugin and have enhancement requests or want to
highlight some existing bugs, let us know on the bug report.
https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=30650

I am aware of the different issues opened on the github repository of the
project and will take them into account as much as I can.

Regards,
Jonathan