Many more tests and fixes

PkmnLib.Dynamic/ScriptHandling/Script.cs

@@ -14,6 +14,13 @@ public abstract class Script : IDeepCloneable, IScriptOnRemove
 {
     internal event Action<Script>? OnRemoveEvent;
 
+    /// <summary>
+    /// Whether the script is a charge script that's considered a semi-invulnerable turn, such as fly, dig, etc.
+    ///
+    /// see also: <a href="https://bulbapedia.bulbagarden.net/wiki/Semi-invulnerable_turn">Semi-invulnerable turn</a>
+    /// </summary>
+    public virtual bool IsSemiInvulnerableTurn => false;
+
     /// <summary>
     /// Remove the script from its owner.
     /// </summary>