Support Mac Catalyst / XCFramework

[Droppix]

New issue checklist

• [X] I have reviewed the README and documentation
• [X] I have searched existing issues and this is not a duplicate
• [] I have attempted to reproduce the issue and include an example project.

General information

• IGListKit version: master
• iOS version(s): 13
• Xcode version: 11
• Devices/Simulators affected:
• Reproducible in the demo project? (Yes/No):
• Related issues:

IGListKit version 4, support Mac Catalyst / XCFramework ?