Enhancement: Change VR/XR Player Settings based on Distribution

[russellweed]

Along the same lines as Issue #6 and #27, it would be great if you could also set VR/XR Player settings according to the existing Filter system.

For example, we could re-arrange the preferred SDK order based on the distribution platform, or even leave them all out except for "None" for a non-VR build.

[robinnorth]

This is a feature I've found myself needing for a project I'm currently working on. I have implemented a build action that allows you to update XR settings on a per-Release Type basis: superunitybuild/buildactions#13

[Chaser324]

@robinnorth Thanks! Great contribution. Quite a few good pull requests lately that I need to get merged. I've been on the road for work for the past couple of weeks, but I will get this merged as soon as possible.

[russellweed]

@robinnorth This is perfect, thank you!