Example Eiger data with 6 virtual data sets dereferencing images

Standard Eiger data set from Diamond Light Source I04, consisting of 180° of rotation data from a cubic insulin crystal, with 6 virtual data sets each corresponding to 30° of data, to illustrate how multi-trigger Eiger data sets could be structured efficiently. Virtual data sets made with https://github.com/graeme-winter/NXmxtools/blob/master/vdsmaker.py Key feature is that the underlying data type (UINT16) corresponds to the virtual data set type. This will require HDF5 1.10 series to read. Files: insu_d200_1.nxs - NXmx formatted data with internal VDS insu_d200_1_000001.h5 - real data 1/2 insu_d200_1_000002.h5 - real data 2/2 insu_d200_1_1.nxs - VDS subset of data 1/6 ... insu_d200_1_6.nxs - VDS subset of data 1/6 insu_d200_1_master.h5 - DECTRIS style master file insu_d200_1_meta.h5 - metadata insu_d200_1_meta_pack.h5 - repacked metadata (not used)