Change test/sample namespaces to not include 'Experiment'

[michael-hawker]

@Arlodotexe think we change the template to be 'component' now right?

However, a lot of them here still use ____Experiment.Samples for instance, we should update these all to use Component instead.

Though I think there's a sub-module piece that looks at the name, so maybe that needs to be updated too?