Use the GeoAPI PropertyType interface. This is a branch-specific change; the trunk will need to use the current hacks,
since those feature interfaces are not part of GeoAPI 3.0 (the will be submitted for next GeoAPI version).


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1597732 13f79535-47bb-0310-9956-ffa450edef68