added basic inventory system

Assets/Scripts/InventoryItem.cs

@@ -0,0 +1,18 @@
+using UnityEngine;
+using System;
+using System.Collections;
+using System.Collections.Generic;
+
+// represents an item in the inventory and its count
+[System.Serializable]
+public class InventoryItem
+{
+  public Item item;
+  public int count;
+
+  public InventoryItem(Item item, int count)
+  {
+    this.item = item;
+    this.count = count;
+  }
+}