Extend feature set and/or feature metadata

This issue tracks the addition of new fields to the current feature set specification that allow a user to add metadata to either the feature set or features. These fields are optional and are intended to provide users with the flexibility to include feature level or feature level information.

The current proposal is to only add a single string field called description to FeatureSpec

[woop]

Unless there are any objections, we will implement labels as a map<string, string> at the feature level for 0.5. We will also add basic getters/setters at the feature set level. We will leave the discovery implementation for future releases.

Please vote with a thumbs down if you want to discuss this further.

[tfurmston]

Completely agree that feature level makes sense. As an end user, that is likely how I would expect to use it.

From my point of view, I don’t think we are at a point of a more concrete set of requirements, so happy to leave that for a later point.