Physics (#3452)

* Content side new physics structure

* BroadPhase outline done

* But we need to fix WorldAABB

* Fix static pvs AABB

* Fix import

* Rando fixes

* B is for balloon

* Change human mob hitbox to circle

* Decent movement

* Start adding friction to player controller

I think it's the best way to go about it to keep other objects somewhat consistent for physics.

* This baby can fit so many physics bugs in it.

* Slight mob mover optimisations.

* Player mover kinda works okay.

* Beginnings of testbed

* More testbed

* Circlestack bed

* Namespaces

* BB fixes

* Pull WorldAABB

* Joint pulling

* Semi-decent movement I guess.

* Pulling better

* Bullet controller + old movement

* im too dumb for this shit

* Use kinematic mob controller again

It's probably for the best TBH

* Stashed shitcode

* Remove SlipController

* In which movement code is entirely refactored

* Singularity fix

* Fix ApplyLinearImpulse

* MoveRelay fix

* Fix door collisions

* Disable subfloor collisions

Saves on broadphase a fair bit

* Re-implement ClimbController

* Zumzum's pressure

* Laggy item throwing

* Minor atmos change

* Some caching

* Optimise controllers

* Optimise CollideWith to hell and back

* Re-do throwing and tile friction

* Landing too

* Optimise controllers

* Move CCVars and other stuff swept is beautiful

* Cleanup a bunch of controllers

* Fix shooting and high pressure movement controller

* Flashing improvements

* Stuff and things

* Combat collisions

* Combat mode collisions

* Pulling distance joint again

* Cleanup physics interfaces

* More like scuffedularity

* Shit's fucked

* Haha tests go green

* Bigmoneycrab

Co-authored-by: Metal Gear Sloth <metalgearsloth@gmail.com>

Content.Shared/GameObjects/ContentNetIDs.cs

@@ -14,8 +14,8 @@ namespace Content.Shared.GameObjects
         public const uint STORAGE = 1005;
         public const uint INVENTORY = 1006;
         public const uint POWER_DEBUG_TOOL = 1007;
-        // 1008
-        // 1009
+        public const uint PLAYER_MOB_MOVER = 1008;
+        public const uint TILE_FRICTION = 1009;
         public const uint RANGED_WEAPON = 1010;
         public const uint CAMERA_RECOIL = 1011;
         public const uint SOUND = 1012;
@@ -60,7 +60,7 @@ namespace Content.Shared.GameObjects
         public const uint FLASHABLE = 1051;
         public const uint BUCKLE = 1052;
         public const uint PROJECTILE = 1053;
-        public const uint THROWN_ITEM = 1054;
+        // 1054
         public const uint STRAP = 1055;
         public const uint DISPOSABLE = 1056;
         public const uint GAS_ANALYZER = 1057;