Clean up tests and update sample/tags
Behaviour changes:
- Remove extra VP (superpixel) banks when writing MDF data
Test cleanups and improvements
- Update tests to use a recent sim sample and tags (see LHCBGAUSS-2635)
- Remove redundant Rich-RealDataFormat test
- Reduce number of events used for dump-vp-rawbank test
- Replace xdigi reprocessing test with two tests (first produce, then reprocess)
- Remove boolesys test (subset of boole-upgrade-baseline)
- Remove xdst tests (to be restored when we can produce dsts)
- Remove obsolete VPRetinaCluster tests (now default behaviour)
- Add tests to dump and check raw data (e.g. source ID conformance to Online specs)
- Update references