[Cin] Audio Offset Finder

[Andrea paz]

In the DaVinci Resolve manual (starting on page 425) the way they use
for sync is explained. This might be a cue on how to do it in CinGG,
but I don't actually know how to do it. It's not just a matter of not
knowing how to write code: I don't even intuit how to do it at the
idea level, at the design stage.
https://documents.blackmagicdesign.com/UserManuals/DaVinci_Resolve_18_Reference_Manual.pdf