Implements a bunch more moves

Plugins/PkmnLib.Plugin.Gen7/Scripts/Side/TailwindEffect.cs

@@ -0,0 +1,21 @@
+namespace PkmnLib.Plugin.Gen7.Scripts.Side;
+
+[Script(ScriptCategory.Side, "tailwind")]
+public class TailwindEffect : Script
+{
+    private int _duration = 3;
+
+    /// <inheritdoc />
+    public override void ChangeSpeed(ITurnChoice choice, ref uint speed)
+    {
+        speed *= 2;
+    }
+
+    /// <inheritdoc />
+    public override void OnEndTurn(IBattle battle)
+    {
+        _duration--;
+        if (_duration <= 0)
+            RemoveSelf();
+    }
+}