Y24-126-2 - MultiplexedTube data accessible from v2 API

[BenTopping]

This is part of a large story to import multiplexed library tubes into traction. See traction-ui and traction-esrvice pull requests for further information.

Changes proposed in this pull request

• Adds library and insert_size_to to Aliquot resource
• Adds asset to request resource
• Adds concentration and volume to sample metadata resource

These changes are required for traction ONT multiplexed library import. The exact request can be found here: https://github.com/sanger/traction-ui/pull/1758/files#diff-f234028dfec548a2c67095326eea8f07b445772797a78ff446d28048ef6206c9R9

Instructions for Reviewers

Using the asset name in here so checking thats ok with @KatyTaylor as im not sure on the context of the 'asset' work

[codeclimate[bot]]

Code Climate has analyzed commit 53e180cb and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 86.6% (0.0% change).

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