Added missing quests

Frost Dragon Quest UID = 50038
Fishing Box Quest UID = 50039
Formorgar Mine Quest (skeleton) UID = 50040
Berserker Treasure Quest UID = 50041
Shaman Treasure Quest UID = 50042
Berserk Potion Quest UID = 50043
Inukaya Quest UID = 50044
Dead Archer Quest UID = 50045
Power Ring Quest UIDs = 50046-50047
Orc Shaman Quest UID = 50048
Elvenbane Quest UIDs  = 50049-50052