ome-xml: Timestamp: asDateTime requires timezone
Update documentation autogeneration to produce original metadata pages

See #4645.
Add autogenerated original metadata pages

See #4645.
Update format pages to link to the original metadata pages

See #4645.
Force stricter type checking

There are multiple formats with the .msr extension, so suffix checking
is not sufficient.
merge develop -D org -I include -E exclude: PR 528 (Tile performance improvements for VMS and NDPI)
merge develop -D org -I include -E exclude: PR 618 (Xml annotation)
merge develop -D org -I include -E exclude: PR 619 (xsd-fu: Improve Timestamp date handling and precision)
merge develop -D org -I include -E exclude: PR 620 (Add support for Lavision Imspector data)
merge develop -D org -I include -E exclude: PR 621 (CellWorx: populate StartTime/EndTime on PlateAcquisition (rebased onto develop))
merge develop -D org -I include -E exclude: PR 624 (Add documentation for original metadata)