Add pixel pitch as column to metashape input metadata csv when updated after bundle adjustment and after coregistration

[friedrichknuth]

[friedrichknuth]

update after bundle adjustment is handled here https://github.com/friedrichknuth/hsfm/blob/master/hsfm/metashape/metashape.py#L409 and used here https://github.com/friedrichknuth/hsfm/blob/master/hsfm/batch/batch.py#L814

update after co-registration is handled here https://github.com/friedrichknuth/hsfm/blob/master/hsfm/core/core.py#L1182 and used here https://github.com/friedrichknuth/hsfm/blob/master/hsfm/batch/batch.py#L873