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.Shared/GameObjects/Components/SharedPlaceableSurfaceComponent.cs

@@ -0,0 +1,9 @@
+using Robust.Shared.GameObjects;
+
+namespace Content.Shared.GameObjects.Components
+{
+    public abstract class SharedPlaceableSurfaceComponent : Component
+    {
+        public override string Name => "PlaceableSurface";
+    }
+}