Overhaul item and inventory and clean up bits and pieces

Zennysoft.Game.Ma.Implementation/Item/IBaseInventoryItem.cs

@@ -0,0 +1,15 @@
+
+using Godot;
+using Zennysoft.Ma.Adapter;
+
+public interface IBaseInventoryItem
+{
+  public string ItemName { get; }
+  public string Description { get; }
+  public float SpawnRate { get; }
+  public int ThrowDamage { get; }
+  public float ThrowSpeed { get; }
+  public ItemTag ItemTag { get; }
+
+  public abstract Texture2D GetTexture();
+}