feat: replace binance tss for signing with rust cggmp21 crate

[mpetrunic]

Swap of binance tss library with rust crate for cggmp21 signing using cgo. Unfortunately, rust library doesn't support key resharing so I left existing keygen and resharing using binance tss lib. Big problem is that keyshare format and data, so claude wrote some converter function.

It seems like tests are passing. That said, I don't think current ai slop is ready to be merged, it would probably have to be reviewed and rewritten piece by piece

Description

Related Issue Or Context

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How Has This Been Tested? Testing details.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation

Checklist:

• I have commented my code, particularly in hard-to-understand areas.
• I have ensured that all acceptance criteria (or expected behavior) from issue are met
• I have updated the documentation locally and in docs.
• I have added tests to cover my changes.
• I have ensured that all the checks are passing and green, I've signed the CLA bot