Add some chaos experiments to the repo

[jometzg]

Right now the main part of the workshop relies on workshop users to generate the chaos experiments.

There is also another way of running the workshop where the proctors create some chaos for all participant teams. It would be good to capture these so these need not have to be built from scratch.

Some examples:

1. network latency between tiers
2. High CPU or memory pressure on the IIS VMs
3. network packet loss between Prod API and its SQL database