Add Taproot support and Flexible epochs

[susruth]

• Add Taproot support
• Add Tapscript support
• Update VerifySPV to support flexible epoch windows

Summary by CodeRabbit

Release Notes

• New Features

  • Introduced new libraries for Bitcoin-related operations: LibBitcoin, LibEllipticCurve, LibSPV, and LibTaproot.
  • Enhanced VerifySPV contract with new functionalities for block registration and transaction verification.
  • Added comprehensive testing frameworks for VerifySPV and LibTaproot.

• Bug Fixes

  • Updated references in the codebase to improve functionality and maintainability.

• Chores

  • Removed outdated libraries and test files to streamline the codebase.
  • Adjusted API endpoints and block ranges in testing scripts for local environment compatibility.

[coderabbitai]

Walkthrough

The changes in this pull request include updates to several Solidity libraries and contracts, primarily focusing on the integration of new libraries for Bitcoin-related functionalities, such as LibBitcoin, LibSPV, and LibTaproot. The existing SPVLib has been removed, and various utility functions have been refactored to utilize the new libraries. Additionally, several test files have been introduced or modified to validate the functionality of the updated contracts, particularly for the VerifySPV contract, which now includes enhanced block registration and verification capabilities.

Changes

File	Change Summary
lib/forge-std	Updated subproject commit reference from 978ac6f... to 1de6eec....
lib/openzeppelin-contracts	Updated subproject commit reference from dbb6104... to 5bb3f3f....
src/Types.sol	Deleted file containing the BlockHeader struct definition.
src/Utils.sol	Deleted file containing utility functions for byte data and block headers.
src/VerifySPV.sol	Major modifications including license change, new struct BlockRecord, and several new methods.
src/interfaces/IVerifySPV.sol	Updated method registerBlock to registerLatestBlock with an additional parameter.
src/libraries/LibBitcoin.sol	New library added for Bitcoin data structures and operations, including several utility functions.
src/libraries/LibEllipticCurve.sol	New library added for elliptic curve operations.
src/libraries/LibSPV.sol	New library added for Simplified Payment Verification functions.
src/libraries/LibTaproot.sol	New library added for Taproot functionalities and operations.
src/libraries/SPVLib.sol	Deleted file previously providing blockchain-related functions.
test/LibBitcoin.t.sol	Refactored tests to utilize LibBitcoin, added tests for variable-length integer encoding.
test/LibSPV.t.sol	Updated tests to use LibSPV, removed intermediary contract.
test/LibTaproot.t.sol	New test file for LibTaproot functionalities with various test cases.
test/VerifySPV.mainnet.t.sol	New test file for VerifySPV contract with block registration tests.
test/VerifySPV.regtest.t.sol	New test file for VerifySPV in a regtest environment.
test/VerifySPV.t.sol	Deleted comprehensive test suite for VerifySPV.
test/VerifySPV.testnet.t.sol	New test file for VerifySPV in a testnet environment.
test/scripts/scrapeBlocks.js	Updated API endpoint and block range for scraping blocks, modified output filename.

Poem

In the burrow where code does play,
New libraries hop in, brightening the day.
With Bitcoin and Taproot, they dance and twirl,
Verifying blocks in a blockchain whirl.
Hooray for the changes, let’s leap and cheer,
For the code is now better, let’s spread the good cheer! 🐇✨

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📜 Recent review details

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Review profile: CHILL

📥 Commits

Reviewing files that changed from the base of the PR and between e6c178c and 8c72d99.

⛔ Files ignored due to path filters (1)

• .DS_Store is excluded by !**/.DS_Store

📒 Files selected for processing (19)

• lib/forge-std (1 hunks)
• lib/openzeppelin-contracts (1 hunks)
• src/Types.sol (0 hunks)
• src/Utils.sol (0 hunks)
• src/VerifySPV.sol (1 hunks)
• src/interfaces/IVerifySPV.sol (1 hunks)
• src/libraries/LibBitcoin.sol (1 hunks)
• src/libraries/LibEllipticCurve.sol (1 hunks)
• src/libraries/LibSPV.sol (1 hunks)
• src/libraries/LibTaproot.sol (1 hunks)
• src/libraries/SPVLib.sol (0 hunks)
• test/LibBitcoin.t.sol (3 hunks)
• test/LibSPV.t.sol (6 hunks)
• test/LibTaproot.t.sol (1 hunks)
• test/VerifySPV.mainnet.t.sol (1 hunks)
• test/VerifySPV.regtest.t.sol (1 hunks)
• test/VerifySPV.t.sol (0 hunks)
• test/VerifySPV.testnet.t.sol (1 hunks)
• test/scripts/scrapeBlocks.js (2 hunks)

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