support setting --scale and --offset for reprojection
support setting --scale and --offset for reprojection

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