Support for nvidia on Ubuntu Core 24

[jocado]

Hi.

I would like to add support for nvidia on Ubuntu Core 24 systems. This means a couple of important changes:

• Switching to base core24
• Dropping support for nvidia on Ubuntu Core 22

Because of binary compatibility, it's not possible to support libraries from the host with different bases in a single snap.

I see two potential ways forward, but you may have other suggestions.

• Create a new track for core22, and publish a final release
• Create a new tracks for core22 and core24, with git branches for each, and try and maintain support for both.

I presume that sooner or later it would be desirable to update the base, even without this feature.

I've submitted an initial PR, just to get the ball rolling and start discussion. Happy to debase as required once we find the best way forward and finish development.

I look forward to your comments, and any assistance you can provide.

Thank you!

[jocado]

Also just worth mentioning that the nvidia support in Ubuntu Core 24 is not quite ready for stable, but is expected to be in stable channel quite early next year.