Meta XR All-in-One SDK SerializableDictionary

Hello,

I imported the new Meta XR All-in-One SDK and replaced it with an older version of legacy Oculus SDK. This package however comes with a class SerializableDictionary. Now, I am already using a class called SerializableDictionary in my project. This obviously creates an issue. However, this issue is not easily fixed because the 3rd party asset's class and your class do not have their own namespaces.

Please, in a future release add it to some kind of a Oculus.x.y.Utils namespace. The file itself is in a folder called Utils but it would be of great help if your custom classes were in your package-specific namespace.