Made lucas the Main character and also added collision

Collector/src/Character/Inventory.cs

@@ -0,0 +1,18 @@
+using System.Collections.Generic;
+using Collector.Dimension;
+    
+public class Inventory {
+    private LinkedList<ItemStack> inventory = new LinkedList<ItemStack>();
+
+    public LinkedList<ItemStack> GetInventory() {
+        return inventory;
+    }
+
+    public void SetInventory(LinkedList<ItemStack> inventory) {
+        this.inventory = inventory;
+    }
+    
+    public void RemoveItem(ItemStack itemStack){
+        inventory.Remove(itemStack);
+    }
+}