We have an instances of EncodeJson and DecodeJson for NonEmpty Array but not for NonEmptyArray. Is there a reason for that?

If not, I'd be happy to take a shot at implementing, with two minor points:

1. The logical names for those instances (encodeJsonNonEmptyArray and decodeJsonNonEmptyArray) are already in use. I propose renaming the existing ones to encodeJsonNonEmpty_Array and decodeJsonNonEmpty_Array. Would that break anything?
2. There was some discussion in Instances for NonEmpty Array and NonEmpty List #25 about implementing encodeJsonNonEmptyFoldable and decodeJsonNonEmptyFoldable. That doesn't seem to have happened. Was there a reason it was avoided or did it just fall off the radar?