Implement MVP for the statue decoration minigame (#65)

MVP implemented with:
- placing, removing etc. decorations
- saving the state, displaying it on the map, restoring when game restarts
- saving screenshots to folder on device

Co-authored-by: Michal Pikulski <michal@foolhardyhorizons.com>
Co-authored-by: Michal Pikulski <michal.a.pikulski@gmail.com>
Reviewed-on: #65

Assets/Scripts/Levels/MinigameSwitch.cs

@@ -34,7 +34,7 @@ namespace Levels
         /// </summary>
         [SerializeField] private bool startUnlocked = false;
         
-        private SpriteRenderer iconRenderer;
+        [SerializeField] private SpriteRenderer iconRenderer;
         private IInteractionSettings interactionSettings;
         private bool isUnlocked;