Instructions on how to install on a node that doesn't have access to the internet

[sbryngelson]

Some computers won't let us wget and pip install our way to victory when certain dependencies don't exist (e.g., systems with classified or sensitive info.). We should have instructions on how, at least roughly, to build MFC when these dependencies don't already live on the node.

[sbryngelson]

A singularity container seems like a good idea, though there would have to be containers for GPU cases, CPU cases, as well as case-optimization of the benchmark case (in case the container is being used for benchmarking purposes). That's four separate containers.