First couple abilities implemented

PkmnLib.Dynamic/Libraries/DataLoaders/Models/SerializedAbility.cs

@@ -19,4 +19,6 @@ public class SerializedAbility
     /// A collection of arbitrary flags that can be used to mark the ability with specific properties.
     /// </summary>
     public string[] Flags { get; set; } = [];
+
+    public bool? CanBeChanged { get; set; }
 }