Enable feature test

[mschoenlaub]

This SDK currently does not support the feature tests included in the OpenFeature spec.
This should change.
There might be more value in that once the test suite grows larger, but I see the JavaScript SDK already supports that and we might staring to think about, just because it's going to be a bit of boilerplating.

[technicalpickles]

Could you elaborate? I think specs is ambiguous in this case, ie the specs (tests) in this repo vs the open-feature spec

[mschoenlaub]

Sure, @technicalpickles. I updated the comment above. Hope that's less ambiguous now.