'0' and 'false' are not valid values for a bool symbol. The parser emits
a note and falls back to 'n', so the resulting configuration is correct
but the build is noisy. Set the two remaining example symbols to
'default n' to make the value explicit and silence the note.
- Introduced TWAI utility commands for sending, dumping, and managing TWAI frames.
- Added configuration options for TWAI GPIO pins and support for TWAI-FD.
- Created necessary CMake and Kconfig files for building the TWAI utilities.
This enhancement provides a comprehensive interface for TWAI operations.