ZoneDatabase::InsertDoor converted to xyz_heading
ZoneSpellsBlocked converted x,y, and z to m_Location as xyz_location
xdiff, ydiff, and zdiff in ZoneSpellsBlocked converted to xyz_location m_Difference
GetSpellBlockedMessage converted to xyz_location
Added two axis aligned bounding box check functions
Zone::GetSpellBlockedMessage convered to use IsWithinAxisAlignedBox
IsSpellBlocked converted to use xyz_location
psafe_x, psafe_y, and psafe_z replaced with xyz_location m_SafePoint
pgraveyard_x, pgraveyard_y, pgraveyard_z, and pgraveyard_heading converted to xyz_heading as m_Graveyard
SetGraveyard to xyz_header