- Enhanced RISC-V parser to support reloc_type and symbol in ImmediateOperand.
- Added missing attributes (reloc_type, symbol) to ImmediateOperand and updated __eq__ for backward compatibility.
- Fixed all flake8 (E501, E265, F401, F841) and Black formatting issues across the codebase.
- Improved docstrings and split long lines for better readability.
- Fixed test failures related to ImmediateOperand instantiation and attribute errors.
- Ensured all tests pass, including edge cases for RISC-V, x86, and AArch64.
- Updated .gitignore and documentation as needed.
- Renamed example files for consistency (rv6 -> rv64).
