native libvlc logging strategy

build and package https://github.com/jeremyVignelles/libvlcLogInterop for all platforms. crossbuild does that correctly except for iOS/tvOS (and UWP?). We need a bash script that invokes xcode for those platforms.
write C# interop in libvlcsharp.
expose API

How does the API relates to #37?

Should it be a dev dependency (invisible to consumer, like android.awindow)?

Edited Mar 26, 2019 by Martin Finkel

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