Reboot libvlc versioning checks
Disabled it because of some Fody build issue which has most likely been solved now that it moved to netstandard2.
With libvlc 4.0 coming, nightlies builds on nuget (soon) and libvlc 4-only APIs, the runtime check needs to come back.
Symbols diff between libvlc 3 and libvlc 4 (as of now) https://gist.github.com/mfkl/7588a36c5d66fe30725c6a64fdfcae79
What about structures versioning?
Given that 2 packages were uploaded to nuget, versions 2 and 3, does nuget allow uploading a package say version 2.1 or expects it to be higher than 3? Nuget allows https://www.nuget.org/packages/Test-versioning