Make sure not to run centring between screening and full collection

[DominicOram]

Currently if screening comes back saying to do a full collection on the current pin then centring is run again. This is unnecessary and should not be done.

Note: This may now be easier solved by making a specific screening plan rather than changing GDA/hyperion interactions

Acceptance Criteria

• Centring is not done again if a screening comes back as should be doing a full collection

[DominicOram]

Logic needs to be:

• If sample is same as before do not robot load
• If robot has loaded a new sample or chi has changed re-do centring

See code in prod for a pretty dumb way to do it. Ideally we would get richer info from agamemnon about whether we're doing a screening or a chi change etc. then we can have neat plans for each