works with latest libvlcsharp unity build

d3d9 is deprecated on unity and 32 bits support for us is not a priority right now

https://blogs.unity3d.com/2017/07/10/deprecating-directx-9/
https://blogs.unity3d.com/2016/11/15/end-of-support-for-32-bit-editor-for-windows/

*all* the meta files need to be tracked in git otherwise problems happen (see previous commit).
more info https://docs.unity3d.com/Manual/ExternalVersionControlSystemSupport.html and https://stackoverflow.com/questions/19151247/ignoring-folder-meta-files-on-version-control

# Conflicts:
#	.gitignore

Both ways work

We can use the Update() function from MonoBehaviour instead of our own custom coroutine

Takes a while to update so increase value to observe seek change more evidently

with old build from 0.0.3 release + update c++ plugin and this Unity script, it doesn't crash or asserts (still leaks from libvlc)

same code than 168f0aeb but in scene settings

It is not needed anymore since we build with llvm-mingw