Move ZstdSharp into SharpCompress #1051
Description
think the authors have little interest in this: oleg-st/ZstdSharp#36
The biggest hurdle found so far is that there is a lot of unsafe/native usage that is probably incompatible with AOT. I know work was done to make everything CLSCompliant.
I'm ignoring big issues but might also rethink what targets there are. The legacy framework targets are slowing things down too.
Started here #949