Refactor ghost boo to ECS (#4511)

* Moved ghost boo to ecs

* Fixed small light exception

* No need to inject EM

* Moved cooldown and time to fields

Co-authored-by: metalgearsloth <31366439+metalgearsloth@users.noreply.github.com>

Content.Server/Ghost/GhostBooEvent.cs

@@ -0,0 +1,9 @@
+using Robust.Shared.GameObjects;
+
+namespace Content.Server.Ghost
+{
+    public class GhostBooEvent : HandledEntityEventArgs
+    {
+
+    }
+}

Content.Server/Ghost/IGhostBooAffected.cs

@@ -1,18 +0,0 @@
-using Content.Shared.Actions.Behaviors;
-
-namespace Content.Server.Ghost
-{
-    /// <summary>
-    ///     Allow ghost to interact with object by boo action
-    /// </summary>
-    public interface IGhostBooAffected
-    {
-        /// <summary>
-        ///     Invokes when ghost used boo action near entity.
-        ///     Use it to blink lights or make something spooky.
-        /// </summary>
-        /// <param name="args">Boo action details</param>
-        /// <returns>Returns true if object was affected</returns>
-        bool AffectedByGhostBoo(InstantActionEventArgs args);
-    }
-}