Metadata propagation

Propagate metadata enabling tomography reconstruction.

limatake
 - start_time
 - end_time
 - title
 - measurement/pilatus
 - instrument/pilatus/acq_parameters/acq_expo_time
/gpfs/easy/data/id15/inhouse6/ihma171/id15/Cr2O3_1275mm_100keV/Cr2O3_1275mm_100keV_0001/Cr2O3_1275mm_100keV_0001.h5 

loopscan, ftimescan
 (= limatake +)
 - measurement/fpico2
 - measurement/fpico3
 - measurement/epoch
 - measurement/elapsed_time
 * optional objects in measurement (e.g pilatus_roi, temperature)
/gpfs/easy/data/id15/inhouse6/ihma171/id15/Water_1275mm_100kev_1/Water_1275mm_100kev_1_0001/Water_1275mm_100kev_1_0001.h5

fscan, fscan2d
 (= limatake +)
 - measurement/fpico2
 - measurement/fpico3
 - measurement/epoch_trig
 - measurement/<scan motor> (motor name in title, more than one in case of fscan2d)
 * optional objects in measurement (e.g pilatus_roi, temperature)
/gpfs/easy/data/id15/inhouse6/ihch1573/id15/df6/df6_align/df6_align.h5

aeroystepscan
 (=limatake +)
 - measurement/fpico2
 - measurement/fpico3
 - measurement/epoch_trig
 - measurement/hrrz
 - measurement/hry
 - instrument/positioners/hrz
 * optional objects in measurement (e.g pilatus_roi, temperature)
/gpfs/easy/data/id15/inhouse6/ihma171/id15/MJ1_101_cycled/MJ1_101_cycled_0002/MJ1_101_cycled_0002.h5