moving off nu7hatch/gouuid

[sv]

Alternatives: https://gof.rs/projects/uuid/ or https://github.com/google/uuid

reason: package is not maintained/versioned and has some issues nu7hatch/gouuid#26

[lkramer]

Hi,

I have made a stab at switching to google UUID since I needed to use guid and wanted to make a few small improvements anyway.

Leonard