Remove unnecessary thread fences in Kokkos package

Integrate compute cnp/atom contributed by Paulo Branicio (USC)

add "atomonly" optimized neighbor list build styles to USER-OMP

Using correct ndegree instead of nnn

Add USER-OMP compatible OpenMP support to USER-REAXC

added several features to the NEB

This updates the code base with several required updates from master

SNAP changes by Aidan

Collection of minor updates

Fix bug where fix/compute style names were not correctly set with suffixes

Collected small updates and bugfixes

Using correct value for atom->nlocal in translate/rotate in fix_gcmc.cpp

Setting molecule COM to 0 after moving atoms

must not use strtok() in library function as it is not re-entrant and may be used inside LAMMPS commands

removed a bug in fix_neb.cpp which prevented the freeend to work properly, plus added an example for the neb freeend

removed a bug in fix_neb.cpp which prevented the freeend to work properly, plus added an example for the neb freeend