Add test to check all assets are in PascalCase

[stilnat]

Summary

We'd like an automatic way to check all asset's names are written in PascalCase, and the test should return a list of all assets with their position in the folder's hierarchy that do not respect this rule. Please exclude external folder such as TextMeshPro from this rule. I don't have an exhaustive list of external folder so you might want to ask in discord to know more about it.

Possible solution

In LobbyTest.cs you can check the test SpecifiedFieldsWithinSceneAreNotNull, it should be a good source of inspiration.