Click Drag Functionality + Refactor Interaction Interfaces (#1125)

Co-authored-by: Víctor Aguilera Puerto <6766154+Zumorica@users.noreply.github.com>
Co-authored-by: ComicIronic <comicironic@gmail.com>
Co-authored-by: Pieter-Jan Briers <pieterjan.briers+git@gmail.com>

Content.Server/Interfaces/GameObjects/Components/Interaction/ITargetedInteractEventArgs.cs

@@ -0,0 +1,17 @@
+using Robust.Shared.Interfaces.GameObjects;
+
+namespace Content.Server.Interfaces.GameObjects.Components.Interaction
+{
+    public interface ITargetedInteractEventArgs
+    {
+        /// <summary>
+        /// Performer of the attack
+        /// </summary>
+        IEntity User { get; }
+        /// <summary>
+        /// Target of the attack
+        /// </summary>
+        IEntity Target { get; }
+
+    }
+}