Prepare simulation scripts and data sets for PSI emulation modes

A set of well defined, discoverable, and accessible MS datasets for testing the PSI when using the CBF visibility emulator is important as it will not always be possible or practical to run all tests of SDP Prototype and SKAMPI in a PSI environment.

A selection of data sets should allow us to test not only successful behaviour but failure modes (eg correlator delay errors) and how these are can be captured and reported in the system via the use of QA displays SP-1156 .

This also sets a valuable precedent for how we might emulate and test AA0.5 deployments before that system is available. 

• Create small set of well defined, easily accessible MS data sets for use for testing the PSI. 
• Data sets should be made available for emulation of the PSI in an integration environment as well as for local testing (could be different data sets for each case)
• These data sets should contain data that can be used to test visibility receive and associated QA signal displays for both normal PSI operation and when data errors (eg correlator delay errors) are present.

The scripts to generate the Low and Mid PSI simulations have been made available in the simulation GitLab repositories.

Example Measurement Sets have been generated following the specifications for the PSI and they are available in the simulation data repository. They include a some with an incorrectly placed station/dish to mimic a delay error:

https://console.cloud.google.com/storage/browser/ska1-simulation-data/ska1-low/psi_test
https://console.cloud.google.com/storage/browser/ska1-simulation-data/ska1-mid/psi_test

MID scripts documented at:

• https://developer.skatelescope.org/projects/ska-mid-simulations/en/latest/PSI/guide.html

LOW script:

• https://gitlab.com/ska-telescope/ska-low-simulations