Overview

This PR adds support for external libraries in Medusa, allowing for proper deployment, linking, and testing of contracts that depend on external Solidity libraries.

Key Changes

• Added infrastructure to identify and map library dependencies between contracts
• Implemented topological sorting algorithm for determining correct deployment order
• Created bytecode linking functionality to replace library placeholders with deployed addresses
• Updated test chain deployment process to respect library dependency order

Testing

• Added test contracts in fuzzing/testdata/contracts/external_library/ demonstrating various library dependency scenarios
• Test contracts include multi-level dependencies (libraries depending on other libraries)
• Tests validate correct library deployment order and proper function execution through dependencies