Some extensions/cleanup in USER-MANIFOLD

Add `reinit` keyword to rigid body fixes

Implement check whether commands or styles try to change cached properties in rigid body integrators

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