Overhaul item and inventory and clean up bits and pieces

Zennysoft.Game.Ma.Implementation/Equipment/Augment.cs

@@ -13,13 +13,6 @@ public class Augment
   public IAugmentType AugmentType { get; set; }
 }
 
-public interface IAugmentType
-{
-  void Apply();
-
-  void Remove();
-}
-
 public class HPRecoverySpeedAugment : IAugmentType
 {
   private readonly IPlayer _player;