First couple abilities implemented

PkmnLib.Dynamic/ScriptHandling/Script.cs

@@ -546,6 +546,13 @@ public abstract class Script : IDeepCloneable
     {
     }
 
+    /// <summary>
+    /// This function is triggered on a Pokemon and its parents when an opponent switches in.
+    /// </summary>
+    public virtual void OnOpponentSwitchIn(IPokemon pokemon, byte position)
+    {
+    }
+
     /// <summary>
     /// This function is triggered on a Pokemon and its parents when the given Pokemon consumes the
     /// held item it had.

PkmnLib.Dynamic/ScriptHandling/ScriptResolver.cs

@@ -34,10 +34,7 @@ public class ScriptResolver
         }
 
         script = scriptCtor();
-        if (parameters != null)
-        {
-            script.OnInitialize(parameters);
-        }
+        script.OnInitialize(parameters);
 
         return true;
     }