Scripts/TheStormPeaks: Quest 13003 "Thrusting Hodir's Spear"

By cr4st: Not completely blizzlike... but quest can complete.

Know Issues:
- Waypoints needed.
- Alternative Vehicle? Player can quit vehicle in phase 2 and death
fall.
- Player is not in his mouth in phase 2.
- Flight animation does not sometimes.

https://github.com/TrinityCore/TrinityCore/issues/12808