Add Galoshes slowdown over slippery surfaces (#30967)

* first draft

* Fixed it all, just need to rename stuff

* Rename and add comments

* Clean-up

* Access added

Content.Shared/Bed/Sleep/SleepingSystem.cs

@@ -158,7 +158,7 @@ public sealed partial class SleepingSystem : EntitySystem
 
     private void OnSlip(Entity<SleepingComponent> ent, ref SlipAttemptEvent args)
     {
-        args.Cancel();
+        args.NoSlip = true;
     }
 
     private void OnConsciousAttempt(Entity<SleepingComponent> ent, ref ConsciousAttemptEvent args)