move puzzle implementations out of engine

Assets/Engine/Runtime/Modules/Description/DoorModuleDescription.cs

@@ -0,0 +1,17 @@
+using UnityEngine;
+
+namespace EscapeRoomEngine.Engine.Runtime.Modules.Description
+{
+    /// <summary>
+    /// The <see cref="ModuleDescription"/> for a <see cref="DoorModule"/>. Includes the description of the connected door.
+    /// </summary>
+    [CreateAssetMenu(menuName = "Modules/Door")]
+    public class DoorModuleDescription : ModuleDescription
+    {
+        /// <summary>
+        /// The description for the door that should be connected with this one.
+        /// <example>If this is a teleporter entrance, the connected door should be a teleporter exit.</example>
+        /// </summary>
+        public DoorModuleDescription connectedDoorDescription;
+    }
+}