[3048] Allow Skadi to cast Freezing Cloud only on one side

This will sort the flame triggers based on position and triggered aura
[3049] Update script for quest 10451

Part of #27

Thanks @Grz3s for providing the data
[3050] Implement script for npc 19554

Required for quest 10439. Also requires dbscript for proper functionality

Close scriptdev2/scriptdev2-cata#5