- added new tests flag `--load_size` to control amount of data being written -S,M or L(less than 1M,1M and 10M respectively)
- added new test flag `--collect_metrics` - if this flag is present, the framework will start prometheus and grafana services and monitor rook cluster
- added new test flag `--enable_chaos` - if this flag is present, random pods in rook cluster will be killed peridiocally
- update longhaul test pipeline (added new flags)
- updated docs
refactor integration tests splitting out the kubernetes
cluster setup to just be in a script and making it the reponsibility
of the host/user/jenkins.
integration tests now run just like unit tests using "go test".