example models with multiple cutoffs

Hi All,

I'm posting here as it is the simplest way to reach everyone who is currently working with our latest development efforts on the kim-api.

For those of you creating/updating simulators to work with kim-api-v2, and following along on the 'devel-v2' branch of the github openkim/kim-api repo.

We have recently pushed changes with the addition of two example models for testing.

1) ex_model_Ar_P_Morse_MultiCutoff

This model is a superposition of two shifted Morse potentials with different cutoff values. It uses two neighbor lists with different cutoffs and does not request neighbors of non-contributing partiles.

2) ex_model_Ar_SLJ_MultiCutoff

This is an environment dependent LJ model that Ellad created. It uses two neighbor lists with different cutoffs and DOES request neighbors of non-contributing particles.

Cheers,

Ryan