More abilities, refactor IPokemon.SetStatus to pass pokemon that caused the status change

Plugins/PkmnLib.Plugin.Gen7/Scripts/Abilities/SweetVeil.cs

@@ -0,0 +1,20 @@
+namespace PkmnLib.Plugin.Gen7.Scripts.Abilities;
+
+/// <summary>
+/// Sweet Veil is an ability that prevents the Pokémon and its allies from falling asleep.
+///
+/// <see href="https://bulbapedia.bulbagarden.net/wiki/Sweet_Veil_(Ability)">Bulbapedia - Sweet Veil</see>
+/// </summary>
+[Script(ScriptCategory.Ability, "sweet_veil")]
+public class SweetVeil : Script
+{
+    /// <inheritdoc />
+    public override void PreventStatusChange(IPokemon pokemon, StringKey status, bool selfInflicted,
+        ref bool preventStatus)
+    {
+        if (status == ScriptUtils.ResolveName<Status.Sleep>())
+        {
+            preventStatus = true;
+        }
+    }
+}