Inquiry about adding a lib for EDS Calendar Integration extension

[dobicinaitis]

Hi!
I'm reaching out to see if you'd be open to accepting a contribution that adds a library and interface needed for an extension.

The EDS Calendar Integration extension is currently broken (issue) in the Thunderbird Snap version. I've tested that it can be unbricked by adding the calendar-service plug and libecal-2.0-1 to staged packages.

Would you be willing to include these into the Snap?

Thanks in advance for the reply!