feat: Batch deletions from Utreexo accumulator

[Groxan]

• resolves [feat] Batch deletions from Utreexo accumulator #236
• follows contribution guide
• code change includes tests

This PR includes implementation of batch deletion for StumpUtreexoAccumulator, according to the reference implementation in rustreexo.

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Name	Status	Preview	Comments	Updated (UTC)
raito	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Oct 17, 2024 2:36pm

[m-kus]

@Groxan pls rebase and extend the stump verification.
It might make sense to introduce a smarter wrapper for provided/computed nodes/positions (not get_next but maybe a struct or smth like that) to reduce complexity.

[Groxan]

@m-kus I've reimplemented verification in a more efficient way (also added more advanced test cases) and reimplemented deletion, using the new algorithm. Since deletion actually includes verification, I called it verify_and_delete.

p.s. I didn't remove the existing verification, but moved it to verify_legacy, in case it may be needed in the future

[m-kus]

Thanks! Great job 👍