feat: Quilt client part ii

[liquid-helium]

Description

Added QuiltClient to handle storing/reading quilts.
Contributes to WAL-858

Test plan

How did you test the new or updated feature?

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Release notes

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For each box you select, include information after the relevant heading that describes the impact of your changes that
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• Storage node:
• Aggregator:
• Publisher:
• CLI:

[mlegner]

Thanks a lot for the PR, @liquid-helium, really nice! As usual, a few mostly minor comments and suggestions.

[mlegner]

Important: We should have some way of handling duplicate filenames.

One idea would be to use relative paths to some specified path (we have already deduplicated the file paths).

[liquid-helium]

Good catch!

I've given this some thought as well, and it involves a trade-off. Using the full path is likely the most stable option, but it can include a lot of unnecessary details or even sensitive information, like an account number embedded in the full path. Since we allow reading files from different directories, relying on relative paths could lead to duplicates as well.

That's why I opted to use only file names for now. Looking ahead, when we introduce support for per-blob attributes, I hope the input will be 'rich' by default. This will enable users to assign custom identifiers, providing more flexibility.

But I am open to other approaches, just keeping it as for now and see where we go.

[github-actions]

Warning: This PR modifies the Walrus CLI. Please consider the following:

• Make sure the changes are backwards compatible. Consider deprecating options before
  removing them.
• Generally only use long CLI options, not short ones to avoid conflicts in the
  future.
• If you added new options or features, or modified the behavior, please document the
  changes in the release notes of the PR and update the documentation in the docs/book
  directory.

[liquid-helium]

Thanks a lot for the PR, @liquid-helium, really nice! As usual, a few mostly minor comments and suggestions.

Thanks @mlegner for the suggestions and comments, these are really helpful! PTAL.