Updated visibility receive workflow integrated into the SDP prototype

This feature should extend the great work done by the YANDA team (s.ord) in PI6 which design an developed an updated visibility receive workflow targeted at the PSI (and AA0.5) requirements (see links below).

The critical next step for this is to test and implement this updated workflow in the SDP prototype code controlled though commands issues to the SDP Subarray device and as part of a tested SKAMPI deployment in a suitable integration environment. If possible this should extend to consider configuration and deployment of a multi-node receive workflow. 

If time permits this work should also consider some (or all) of the of the following next steps:

• Working closely alongside the team/teams who select SP-1001 to test this workflow with associated real-time signal plots
• Working closely alongside the team/teams who select SP-1023 to provide a PoC of how additional RT processing (eg flagging) might be associated with visibility receive.
• Working closely alongside the team/teams who select  SP-1048 to test deployment latency associated with the risk of assigning and (re-)configuring SDP resources
• Testing and adding other protocols (eg. RoCE)
• Adding additional payloads
• Consideration and PoC of an improved mechanism to obtain MS meta-data for use in the receive workflow. As only limited data is provided by the CBF data stream currently the source of additional meta-data required to construct the MS written by the receive workflow is not architecturally correct.
• Consideration and testing of error / failure modes relating missing data, dropped connections, failure of a node where receive is started etc.

Links to work from PI6:

Features:

• -SP-794-
• -SP-836-

Code:

• https://gitlab.com/ska-telescope/cbf-sdp-emulator

Demo:

•  https://confluence.skatelescope.org/pages/viewpage.action?pageId=108594757