Using plugin in-editor for Mac

[bsubbaraman]

This plugin has been working well for me, thanks so much for making it available. For my use case, I'd like to use the webcam in-editor on a Mac (cross-platform Mac/Windows is necessary for the project, so just switching to Windows won't work). However, I'm not very familiar with AVFoundation especially in an Unreal context, so I'm wondering if anyone has suggestions on how this might be done - or, if it was left out because it is difficult to implement. Any suggestions are appreciated!