Merge remote-tracking branch 'origin/feature/8594_add_convert2hist_to_LoadDaveGrp'
Merge remote-tracking branch 'origin/feature/9454_SaveZODS_H'
Merge remote-tracking branch 'origin/feature/9379_elipsoid_axes_radii'
Re #9466. Changing number of atoms to a float.
Re #9466. Changed Atom to forward declare.
Merge branch 'feature/9466_float_atoms' into develop