Pulling rework (#20906)

* Pulling rework

Fixing up the FOUR systems managing pulling, all the shitcode, and also making it nicer ingame.

* More pulling cleanup

* stats

* More cleanup

* First draft

* More pulling

* weh

* Fix puller

* Pulling working

* Fix merge

* Dunked

* Self-merge time

Content.Shared/Movement/Pulling/Events/PullStartedMessage.cs

@@ -0,0 +1,9 @@
+namespace Content.Shared.Movement.Pulling.Events;
+
+public sealed class PullStartedMessage : PullMessage
+{
+    public PullStartedMessage(EntityUid pullerUid, EntityUid pullableUid) :
+        base(pullerUid, pullableUid)
+    {
+    }
+}