Y24-007 Update pooling algorithm

[yoldas]

Closes #

Changes proposed in this pull request

• WIP: partial work on weighted allocation and even distribution

Instructions for Reviewers

[All PRs] - Confirm PR template filled
[Feature Branches] - Review code
[Production Merges to main]
    - Check story numbers included
    - Check for debug code
    - Check version

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 93.65%. Comparing base (46400b6) to head (267d297). Report is 4 commits behind head on develop.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #1734 +/- ## =========================================== + Coverage 91.24% 93.65% +2.41% =========================================== Files 367 42 -325 Lines 7572 930 -6642 =========================================== - Hits 6909 871 -6038 + Misses 663 59 -604 ``` | [Flag](https://app.codecov.io/gh/sanger/limber/pull/1734/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=sanger) | Coverage Δ | | |---|---|---| | [javascript](https://app.codecov.io/gh/sanger/limber/pull/1734/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=sanger) | `93.65% <ø> (ø)` | | | [pull_request](https://app.codecov.io/gh/sanger/limber/pull/1734/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=sanger) | `93.65% <ø> (?)` | | | [push](https://app.codecov.io/gh/sanger/limber/pull/1734/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=sanger) | `93.65% <ø> (+2.41%)` | :arrow_up: | | [ruby](https://app.codecov.io/gh/sanger/limber/pull/1734/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=sanger) | `?` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=sanger#carryforward-flags-in-the-pull-request-comment) to find out more.

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