use copy constructor for metadata creation
use copy constructor for metadata creation

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