Separate ghost warp message into two (#3310)

* Separate ghost warp message into two

* Remove redundant arguments

* Address reviews

* Move properties up

Content.Shared/GameObjects/Components/Observer/GhostWarpToTargetRequestMessage.cs

@@ -0,0 +1,18 @@
+using System;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.GameObjects.Components.Observer
+{
+    [Serializable, NetSerializable]
+    public class GhostWarpToTargetRequestMessage : ComponentMessage
+    {
+        public EntityUid Target { get; }
+
+        public GhostWarpToTargetRequestMessage(EntityUid target)
+        {
+            Target = target;
+            Directed = true;
+        }
+    }
+}