Orientate positional scores to donor typing

[zabeen]

Positional scores are currently orientated to patient typing, but it makes more sense for them to be aligned to donor typing - and that is the expectation from WMDA (current AN search implementation does not care about the orientation; it does not show this data to users, only the overall grade/match count).

[zabeen]

AN Testing Notes

This change can only be regression tested on AN - it needs more thorough testing on WMDA, where the issue was first reported.

Regression test:

• Run a 10/10 search with scoring requested at all loci, Dpb1 excluded from aggregation, and match prediction ON.
• For each locus in ScoringResult.ScoringResultsByLocus:
  • Every property within ScoreDetailsAtPositionOne and ScoreDetailsAtPositionTwo should be non-null.

[DmitriyShcherbina]

@zabeen It looks ok from my perspective "searchIdentifier": "163fd602-eeba-4413-a32e-b3f03e2baae0"

[zabeen]

WMDA Testing

Once the change has been deployed to WMDA Dev, need to re-run search 8956421b-8305-463b-ac26-eea97db1350a, and check orientation of DRB1 scores on donors 267964142 and 267967416. Position 2 should be called mismatch.

Passed - both scoring and match prediction grades had the mismatch in the DRB1_2 position

If that looks good, then release to Prod and re-run searches raised by super-users (will need search IDs for this).

Passed - re-ran case 8 from super-user testing, and DRB1 mismatch is in the expected position.