- update lammps python package to use setuptools
- refactor MLIAP classes into lammps python package
lammps.mliap package
- change TorchWrapper to use dtype and device as arguments
- turn activation of mliappy into functions (was a class)
- add a check to see if python interpreter is compatible
with python lib calls internal to lammps
mliap_model_python_couple.pyx:
- load models ending in '.pt' or '.pth' with pytorch rather than pickle
