Update: f_error changes and more signals

Update: f_error changes and more signals

- Added more signal commands.
- Added more signal codes for up to 64 signals.
- Replaced f_error_unmask with f_error_set_fine to be more consistent with the other f_error_set_* names.
- The signal bit is intended to be both the error and warning bit set so it is mathematically the same as the mask bit.
- Change f_none starting point to 197 to handle all possible 64 signals.