GitLab

Currently --repo, which is used to find simulators etc., defaults to '..',
which only works when executing in the 'experiments' directory in the simbricks
repo. Instead we make this relative to the run.py-file's path.

There are now no more inline functions and a proper main function
instead of top-level code. Functionality-wise, nothing was changed. Code
was only rearranged and some comments added.

I basically did the following:
`mkdir experiments/simbricks/orchestration`
`mv experiments/simbricks/* experiments/simbricks/orchestration/`

Additionally, imports and paths had to be adjusted.

fixes isort's wonky detection of first- and third-party for modules located in experiments/pyexps import modules from experiments/simbricks

This only lists the experiment names

- adds description for netperf experiment
- reformat local.py
- reformat results/netperf.py

this allows the shared memory regions to be created in /dev/shm/ e.g.
instead of the work dir.

Can now select between sockets (default) or rdma.

Includes an new DistributedExperiment class, a runner for distributed
experiments, a basic sequential runtime, and an example experiment
"dist_netperf" (although scaling beyond 2 hosts is currently still
broken in the rdma proxy).

This simplifies both ends, especially with checkpoints.