corrected numerical bug in mover_PC_AoS_vec_intr; working now
created test_version_of_mover_PC_AoS() and test_version_of_mover_PC_AoS_vec_intr()
moved get_field_components_for_cell into EMfields3D.h
moved #include "hdf5.h" into Collective.cpp
removing unneeded includes from Particles3Dcomm.h