feat: bitcoin executor

[mpetrun5]

Implement bitcoin execution of fungible transfers.

Description

Signs taproot inputs individually via FROST algorithm. Stores all executed props
so we prevent same props being executed twice.

Related Issue Or Context

Closes: #263

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

[github-actions]

Go Test coverage is 67.4 %\ ✨ ✨ ✨

[github-actions]

Go Test coverage is 67.4 %\ ✨ ✨ ✨

[github-actions]

Go Test coverage is 67.4 %\ ✨ ✨ ✨

[github-actions]

Go Test coverage is 66.7 %\ ✨ ✨ ✨