Undocumented predicates

The following predicates are exported, but not or incorrectly documented.

 optic_workspace(Arg1, Arg2)

 optic_requirement(Arg1, Arg2, Arg3)

 optic_init(Arg1, Arg2, Arg3)

 optic_predicate(Arg1, Arg2, Arg3)

 optic_function(Arg1, Arg2, Arg3)

 optic_type(Arg1, Arg2, Arg3)

 optic_object(Arg1, Arg2, Arg3)

 optic_derived(Arg1, Arg2, Arg3, Arg4)

 optic_axiom(Arg1, Arg2, Arg3)

 optic_action(Arg1, Arg2, Arg3, Arg4)

 optic_copy_workspace(Arg1, Arg2)

 optic_load_pddl_file(Arg1, Arg2)

 optic_get_plan(Arg1, Arg2, Arg3)

 optic_apply_step(Arg1, Arg2, Arg3)

 ensure_optic

 optic_debug(Arg1)