Remove identity file arguments

These files would need to be copied inside of docker, which is a PITA, so I’m removing them for now
Improving code style (based on PyCharm suggestions) and commenting
Only use the toolset/ directory if custom FrameworkBenchmarks is provided

Using the entire directory is tricky, because the docker container has installed
only the necessary binaries for it’s current FrameworkBenchmarks. Masking
the entire FrameworkBenchmarks folder meant that any items that had been
updated now have a different directory in /installs, and these items were not
being found