* switched environment handling from the control agency side to the entity side to match other zone interactions
* reusing the existing sector data; better resets, negating an issue during mounting where the player does not switch back to recovery; disabling was bugged due to missed timer upgrade
* making lava no longer deadly; wait ...
* only one method of cancelling a lava interaction at a time
* separating geometry classes
* 2d geometry; retirement of the *3D suffix
* makings of an early block map datastructure
* entities in a zone - players, corpses, vehicles, deployables, ground clutter, and buildings - divided between sectors of the zone upon creation, management, or mounting; superfluous messages to keep track of blockmap state, for now
* trait for entities to be added to the blockmap; internal entity data keeps track of current blockmap sector information; calls to add/remove/update functions changed
* modified pieces of environment into an entities that can be added to a block map and have a countable bounding region; fixes for vehicle control seat occcupant collection; fix for squad individual callback references (original issue still remains?)
* introduced the block map into various existijng game calculationa where target selection can be reduced by its probing
* he_mines and jammer_mines now trigger if a valid target is detected at the initial point of deploy; they also trigger later, after a valid target has moved into the arming range of the mine
* conversion of interactions with zone into a queued, periodic set of tasks
* explosive deployable control -> mine deployable control
* tests repaired and all tests working
* mostly comments and documentation
* amenities are now represented on the blockmap
* planar classes to describe levels of water and other fluid parallel to the ground
* corrected purpose of field in OxygenStateMessage and adjusted the structure of the packet; the environment is now 'regions filled with stuff'; messaging pathways to facilitate drowning and drown recovery in SessionActor, WorldSession, and PlayerControl, as well as the avatar event system
* drowning height is now a featur - recommend going through GlobalDefinitions; fixed lava pool collision to work on pool entry rather than drown level; lava now burns; painbox damage now is directed towards players control agency first
* drowning timer works correctly for both player and vehicle targets; timing and dive depth information for targets defined, but currently originates from a generic location (ObjectDefinition); packet OSM has been modified for efficiency; classes for environment features previously exclusive to drowning mechanics have been pushed towards generic naming conventions
* added sea and pools for z4, z5, z8, and z10
* vehicles now take damage (to the point of destruction) when exposed to lava due the expansion of environmental damage reasons and environmental damage modifiers; modification of the environment exposure lingo; streamlining of vital activity record system
* added basic drown params to flying vehicle definitions; object trait and control mixin for environment interaction, code moved from SessionActor and WorldSession
* separated environmental classes; handled waterlogged flying vehicles, in properties and code; wrote comments and tests
* players mounting vehicles and players subjected to the vehicle transfer process should receive updated drown-state status of the vehicle; drowning should suspend while in the middle of vehicle transfer, in the case the process is long
* increased damage performed to vehicles by lava
