Create Cleric card data and script, add namespace to Assassin cards

Assets/Mods/Basic/Cards/Scripts/Assassin/Ambush.cs

@@ -1,12 +1,11 @@
 using Continentis.MainGame.Card;
 using Continentis.MainGame.Character;
 using Continentis.MainGame.Commands;
-using NUnit.Framework.Internal.Filters;
 using SLSFramework.General;
 using System.Collections.Generic;
 using UnityEngine;
 
-namespace Continentis.Mods.Basic.Cards
+namespace Continentis.Mods.Basic.Cards.Assassin
 {
     public class Ambush : CardLogicBase
     {