Bunch more moves, changes in how additional information for items works.

Plugins/PkmnLib.Plugin.Gen7/Scripts/Moves/Mist.cs

@@ -0,0 +1,17 @@
+using PkmnLib.Plugin.Gen7.Scripts.Side;
+
+namespace PkmnLib.Plugin.Gen7.Scripts.Moves;
+
+[Script(ScriptCategory.Move, "mist")]
+public class Mist : Script
+{
+    /// <inheritdoc />
+    public override void OnSecondaryEffect(IExecutingMove move, IPokemon target, byte hit)
+    {
+        var battleData = move.User.BattleData;
+        if (battleData == null)
+            return;
+
+        battleData.BattleSide.VolatileScripts.Add(new MistEffect());
+    }
+}