Add SAC/LAC mpi support #270
Description
Is your feature request related to a problem? Please describe.
Currently, none of the algorithms in the SLC package have MPI support.
Describe the solution you'd like
In the future, we can add MPI support to the SAC and LAC Pytorch algorithms. All the components needed for the Pytorch version are already present, but they need to be added to the algorithms (see https://github.com/openai/spinningup/blob/master/spinup/algos/pytorch/ppo/ppo.py for an example of how to do this).
Describe alternatives you've considered
No response
Additional context
No response