- Added formal verification support for bus and nmi2apb protocols using SymbiYosys and Bitwuzla.
- Introduced new formal design and properties files for both protocols.
- Updated the build system to include formal verification steps in the Makefile.
- Enhanced the doctor script to check for formal tool availability.
- Added scripts for generating formal file lists and SymbiYosys configurations.
- Implemented a wrapper for Bitwuzla to adapt Yosys legacy arguments.
- Updated documentation to reflect new formal verification capabilities.
- Added tests to ensure correctness of formal file generation and result summarization.
