prevent over-capped players clear low lvl maps by CD

[igroglaz]

MissHell's idea:
Top players should not be allowed to take the boss in the first 20 minutes of the map (for 1st server... for #2, #3 etc might be other time cap); otherwise other (new) players can't kill bosses to do Rebirth. Plenty of powerful players farm low-lvl bosses for HP boni

Suggestion on implementation:

1. Restriction works only on mobs which got Treasure in the bag.
2. Check if the player has already killed this kind of mob (this is our criteria that it's over-capped (перекач) player). We can check it via new Section55555555
3. If they have killed the boss before (since we have a kill counter) and they kill it within the first n-minutes of the map, they won’t be able to take the loot bag