Update NULL driver : CreateFeature() -> ICreateFeature()

git-svn-id: https://svn.osgeo.org/gdal/trunk@27964 f0d54148-0727-0410-94bb-9a71ac55c965
Avoid failed tests if no GEOS support

git-svn-id: https://svn.osgeo.org/gdal/trunk@27965 f0d54148-0727-0410-94bb-9a71ac55c965