Pallet owner has a right to halt all pallet operations and then resume it. If it is
None, then there are no direct ways to halt/resume pallet operations, but other
runtime methods may still be used to do that (i.e. democracy::referendum to update halt
flag directly or call the set_operating_mode).
Optional pallet owner.
Pallet owner has a right to halt all pallet operations and then resume it. If it is
None, then there are no direct ways to halt/resume pallet operations, but other runtime methods may still be used to do that (i.e. democracy::referendum to update halt flag directly or call theset_operating_mode).