add default options for CacheFilter
add default options for CacheFilter

lucadelu/PDAL,radiantbluetechnologies/PDAL,mpgerlek/PDAL-old,lucadelu/PDAL,radiantbluetechnologies/PDAL,radiantbluetechnologies/PDAL,DougFirErickson/PDAL,DougFirErickson/PDAL,verma/PDAL,verma/PDAL,mpgerlek/PDAL-old,boundlessgeo/PDAL,Sciumo/PDAL,lucadelu/PDAL,verma/PDAL,Sciumo/PDAL,Sciumo/PDAL,lucadelu/PDAL,jwomeara/PDAL,boundlessgeo/PDAL,mtCarto/PDAL,verma/PDAL,DougFirErickson/PDAL,verma/PDAL,mpgerlek/PDAL-old,verma/PDAL,DougFirErickson/PDAL,boundlessgeo/PDAL,mtCarto/PDAL,radiantbluetechnologies/PDAL,mtCarto/PDAL,Sciumo/PDAL,jwomeara/PDAL,jwomeara/PDAL,jwomeara/PDAL,mpgerlek/PDAL-old,mtCarto/PDAL,verma/PDAL,boundlessgeo/PDAL