* Core/Entities: Fix some weird movement due to los issues
- Made LoS check use collisionHeight instead of midsection. Value was too low.
- Gnomes will now have a breath bar more quickly than for example a tauren.
- Changes have been made to checking for ground z as well, some tweeking might be needed but removed most of the scattered +2.0f/+0.5f/we
* Add 0.05f to isInAir check in Creature::UpdateMovementFlags
(cherry picked from commit e42903ec16)
* Add new method Map::getFullVMapDataForPosition to get area info and liquid info in a single vmap lookup
* Use this lookup in Map:: relocation methods to update m_areaId and m_zoneId fields on WorldObject
* Adjust GetZoneId/GetAreaId on WorldObject to always return these cached fields
* Clean up liquid state handling on Unit and Player
* Hand floor's Z coord up through GetFullTerrainStatusForPosition, use it to update a new field in WorldObject, and use that to feed a new GetFloorZ call on WorldObject.
Closes#16489
(cherry picked from commit f6c849729b)