Feature<TGeometry> does not compare GeoJsonObject

[jnyrup]

Feature<TGeometry>.Equals(Feature<TGeometry> other) does not compare the underlying GeoJsonObject of two instances.
All other classes deriving from GeoJsonObject does that.

I tried adding the following to Equals and no tests failed.

if (!Equals((GeoJSONObject)other))
{
    return false;
}