feat: OpenFeature Prefab provider

[liran2000]

OpenFeature has quite a few feature flags Java providers at the ecosystem.

OpenFeature Prefab Java provider can be added.

hi @jkebinger,
I can try implementing it similar to other providers and share a PR for review.
Possibly later can go for OpenFeature Prefab GO provider too.

what do you think ?

[jkebinger]

That would be great. I’ve looked at doing this now and then but haven’t been able to prioritize it so far.

[liran2000]

hi @jkebinger,
opened PR for your review.
thanks