The real movement refactor (#9645)

* The real movement refactor

* ref events

* Jetpack cleanup

* a

* Vehicles partially working

* Balance tweaks

* Restore some shitcode

* AAAAAAAA

* Even more prediction

* ECS compstate trying to fix this

* yml

* vehicles kill me

* Don't lock keys

* a

* Fix problem

* Fix sounds

* shuttle inputs

* Shuttle controls

* space brakes

* Keybinds

* Fix merge

* Handle shutdown

* Fix keys

* Bump friction

* fix buckle offset

* Fix relay and friction

* Fix jetpack turning

* contexts amirite

Content.Shared/Movement/Events/MoveInputEvent.cs

@@ -0,0 +1,17 @@
+using Robust.Shared.Players;
+
+namespace Content.Shared.Movement.Events;
+
+/// <summary>
+/// Raised on an entity whenever it has a movement input.
+/// </summary>
+[ByRefEvent]
+public readonly struct MoveInputEvent
+{
+    public readonly EntityUid Entity;
+
+    public MoveInputEvent(EntityUid entity)
+    {
+        Entity = entity;
+    }
+}