Use toJSON in Info.
Fix NULL top-level node in Metadata JSON output.
write orientation into XML
cleanup of oci test a little bit (still fails when manually run though)
Merge branch 'point-context-schema' of github.com:PDAL/PDAL into point-context-schema
Expose Dimension type (baseType and size) and fix a warning.
drivers.oci.{reader|writer} fixups
Merge branch 'point-context-schema' of github.com:PDAL/PDAL into point-context-schema
Merge branch 'point-context-schema' into rxp-driver