has-0.3: Entity based records Contents Index

& Data.Has .> Data.Has :&: Data.Has ::: Data.Has :> Data.Has Contains Data.Has Has Data.Has injl Data.Has Knows Data.Has Labelled Data.Has prjl Data.Has Row Data.Has row Data.Has RowOf Data.Has rowOf Data.Has TyNil Data.Has TypeOf Data.Has updl Data.Has ^. Data.Has ^: Data.Has ^= Data.Has