* 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.
Fix Map::GetWaterOrGroundLevel() checking dynamic object only in phase 1 instead of current Unit phase.
Improve DynamicMapTree::getHeight() dynamic object check by casting the ray at +0.5f from the passed Z coordinate, this value will be tuned to improve even more the results.
Tiles which are owned by the mesh should have the DT_TILE_FREE_DATA flag to ensure
deallocation on removal from the mesh.
Log:
==23516== 6,181,976 bytes in 6 blocks are definitely lost in loss record 15 of 15
==23516== at 0x4C298A0: operator new[](unsigned long) (vg_replace_malloc.c:389)
==23516== by 0x2052660: dtCustomAlloc(int, dtAllocHint) (Memory.h:11)
==23516== by 0x29D7FDA: dtAlloc(int, dtAllocHint) (DetourAlloc.cpp:43)
==23516== by 0x230AA70: MMAP::MMapManager::loadMap(std::string const&, unsigned int, int, int) (MMapManager.cpp:166)
==23516== by 0x1DD585B: Map::LoadMMap(int, int) (Map.cpp:125)
==23516== by 0x1DD7266: Map::LoadMapAndVMap(int, int) (Map.cpp:200)
==23516== by 0x1DD93C6: Map::EnsureGridCreated_i(CoordPair<64u> const&) (Map.cpp:453)
==23516== by 0x1DD9129: Map::EnsureGridCreated(CoordPair<64u> const&) (Map.cpp:429)
==23516== by 0x1DED100: Map::GetGrid(float, float) (Map.cpp:2200)
==23516== by 0x1DE0F4C: Map::GetAreaFlag(float, float, float, bool*) const (Map.cpp:2349)
==23516== by 0x198521B: Map::GetZoneId(float, float, float) const (Map.h:353)
==23516== by 0x197CFF0: WorldObject::GetZoneId() const (Object.cpp:1277)
Phase tiles aren't managed by detour so they shouldn't be free'd automatically on removal.
See MMapManager::UnloadPhaseTile
(cherry picked from commit 32e8b6506f)
