[PPV2] Update platforms support

[Wilfrid-Unity]

Purpose of this PR

This PR adds PPV2 support for Shader define of upcoming platform.

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Testing status

UTJ QA team verified these PPV2 package changes as part of validation of Unity version used by pre-launch titles, using test project "Shinai" (see report here ).

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Comments to reviewers

Landing of changes approved in this thread
This is part of worked tracked by these tickets: PLAT-13976, PLAT-13939

[BenGraterUnity]

@Wilfrid-Unity Thanks for putting this together!

Looks good, although I'm not sure if/how I am able to test this currently. I have provided a couple minor comments.

Could you please expand the PR description on how specifically this was tested in editor and device?
Also, maybe just scan the package documentation to make sure there's nothing that would need updating there (probably not).

[Wilfrid-Unity]

I have provided a couple minor comments.

Could you please expand the PR description on how specifically this was tested in editor and device?
Also, maybe just scan the package documentation to make sure there's nothing that would need updating there (probably not).

Thanks @BenGraterUnity, I have addressed your comments in commits 6cabdca..d74e354
I checked the package documentation and spotted nothing platform-specific.
I also added info in the PR about the testing these changes underwent ; let me know if you want more details.

[BenGraterUnity]

Great, everything resolved and looks good. Thank you! 👍

[BenGraterUnity]

@theopnv Could you merge this please?