SwiftPM multi-package repository support


I'm wondering about the status of SwiftPM multi-package repository support. I found a forum thread, JIRA bug, and draft proposal from 2017, but it seems no one is actively working on it.

Could someone please provide a status/direction update? The Swift for TensorFlow team is interested in multi-package repository support, and we may be interested in building it if the direction is clear!


cc @Aciid @ddunbar