script to visualize results from an ORCA-NEB run for ORCA 4.2
Usage: python neb_snapshots.py basename.interp start_at_iter end_at_iter
Input Variables: basename.interp - name of the .interp file outputted from an ORCA NEB run (default: orca.interp) start_at_iter - integer value for the number of iteration where the script should start plotting (default: 0) end_at_iter - integer value for the number of iteration where the script should stop plotting (default: -1 (last iter.))