Update ffi to 2.x

[imtoori]

Describe the feature you'd like

At the moment the package uses ffi: 1.x and this can cause conflicts with packages using more recent versions of ffi

Additional context
For example: GetStream/stream-chat-flutter#1344

Other details:

• I confirm this is not a bug in the VLC app & only dart_vlc.
• I have donated / sponsored dart_vlc.

[MichaelMarner]

Looking at the changelog, the only difference between ffi 1.0 and 2.0 is an update to the minimum dart version

Switch Windows memory allocation to use CoTaskMemAlloc and CoTaskMemFree, which will enable support for NativeFinalizer. This release requires Dart 2.17.0 or greater.

https://pub.dev/packages/ffi/changelog

[alexmercerind]

Apologies for the inactivity. This is a really minor issue & should've been fixed early on.

I have released a new version dart_vlc: ^0.4.0 with required changes & few other fixes.

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Thanks for the patience. I've been inactive for some days. Actively updating & maintaining open-source packages (package:dart_vlc & others on my profile) has been very tedious, aside from actual development process & writing code for the project. And... C++ & writing native code is even more time consuming.
I just decided to stop & un-watch my repositories. All this brought no significant benefit (or no benefit at all) to my life, just additional un-appreciated work & more responsibilities. I used to end-up waste a lot of my time daily helping out people & my e-mail also used to get cramped daily. I added few other collaborators on pub.dev & GitHub to keep the maintenance on track, however it's again just me doing it. On the other hand, I've been somewhat dissatisfied with current state of this package & aiming for a more performant video playback solution for Flutter (specifically Windows & Linux are concerned for now). More on that here: #345. Altogether, I completely lost interest.

Yesterday, some kind folks at Stream decided to reach me out on my e-mail (I can see their referenced issues above) & sponsor package:dart_vlc & future improvements that I make for rendering video in Flutter (initially limiting scope to Windows & Linux).
Hoping to make some good improvements to the ecosystem.