* Add example for until & until_ operator * Add formal test for both operators * Add both operators to supported list
* Add example for next_event[n] operator * Add formal test for next_event[n] operator * Add next_event[n] to supported list * Add next_event_a[n] & next_event_e[n] to unsupported list
* Minor optimization in sequencer unit * Add Makefile & SymbiYosys command files for formal verification tests