Compound scoring: Cap rankscore values to (min, ) range

[torbjorgen]

Capping of rank score bounds fix.

See code comments and READMEs for details on the issue.

TL;DR: When rank score is modified in compound scoring step, the score might fall outside the min-max bounds determined in the variant scoring step (on the lower end). Any such rank score is an invalid value, since it won't map well into the normalized range. Therefore, cap any such low rank score value to (min, max) range.

This impacts the existing rank rank scoring behavior and differs from previous patches on this subject

Opening this PR to make this change visible.

This PR adds | fixes:

• compound scoring: When correcting rankscore, cap to min bound
• Update READMEs on compound scoring

How to prepare for test:

• [ ] ssh to ...
• [ ] Install on stage: bash servers/resources/SERVER.scilifelab.se/update-[THIS_TOOL]-stage.sh [THIS-BRANCH-NAME]

How to test:

-

Expected outcome:

• [ ]

Review:

• [ ] Code approved by
• [ ] Tests executed by
• [ ] "Merge and deploy" approved by

This version is a:

• [x] MAJOR - when you make incompatible API changes
• [ ] MINOR - when you add functionality in a backwards compatible manner
• [ ] PATCH - when you make backwards compatible bug fixes or documentation/instructions

[torbjorgen]

ping @henrikstranneheim @Vince-janv @jemten @dnil Thanks!