[HERCULES] Replaced hardcoded values with constants for status_change_start's flag
- Please use the values from enum scstart_flag when calling
  status_change_start or related functions.
- This also applies to the sc_start script commands.
https://github.com/HerculesWS/Hercules/commit/b0006317e5cc4a48cd5b8a501b94813cd3b93670