A massive overhaul of the MessagePack Lib and integration.
Github issues was having problems with this release and building, so im manually putting DLL's in here.
(will eventually update Git Actions when I can figure them out further - for a proper bundle)
main changes are involved with c68a6ac, please see that for more details.
Full Changelog: https://github.com/nalathethird/MessagePack-CSharp/commits/4.0.0