Add OneOf Package

[GwendalBroudin-Emoko]

Add OneOF package https://www.nuget.org/packages/OneOf/

Dependencies: None

The NuGet package needs to respect a few constraints in order to be listed in the curated list:

• Add a link to the NuGet package: https://www.nuget.org/packages/XXX
• It must have non-preview versions (e.g 1.0.0 but not 1.0.0-preview.1)
• It must provide .NETStandard2.0 assemblies as part of its package
• The lowest version added must be the lowest .NETStandard2.0 version available
• The package has been tested with the Unity editor
• The package has been tested with a Unity standalone player
  • if the package is not compatible with standalone player, please add a comment to a Known issues section to the top level readme.md
• All package dependencies with .NETStandard 2.0 target must be added to the PR (respecting the same rules above)
  • Note that if a future version of the package adds a new dependency, this dependency will have to be added manually as well

Note: The server will be updated only when a new version tag is pushed on the main branch, not necessarily after merging this pull-request.

[TapioRantala]

2023-10-19T15:25:46.4974790Z   Failed Ensure_Min_Version_Is_Correct_Ignoring_Analyzers_And_Native_Libs [11 s]
2023-10-19T15:25:46.5035089Z   Error Message:
2023-10-19T15:25:46.5050086Z      Package OneOf
2023-10-19T15:25:46.5057619Z   Expected: <3.0.205>
2023-10-19T15:25:46.5058013Z   But was:  <3.0.263>

You need to set the version as 3.0.205 (as the oldest supporting netstandard2.0)

[GwendalBroudin-Emoko]

Oh sorry, I didn't read the history correctly