Create zoneless test environment

[MRinaldi9]

I’ve noticed that the test environment for zoneless needs to be defined, and I was thinking about how to implement it.

My idea was to add a new file called setup-zoneless containing the zoneless configuration, and then add a parameter to the setupAngularTestEnvironment function so the necessary modules can be added at runtime.

[shairez]

yes thanks!
this repo is going to move to the vitest-community org and then we'll add the missing features like zoneless