First couple abilities implemented

PkmnLib.Dynamic/Libraries/DataLoaders/AbilityDataLoader.cs

@@ -59,7 +59,7 @@ public static class AbilityDataLoader
 
         var flags = serialized.Flags.Select(x => new StringKey(x)).ToImmutableHashSet();
 
-        var ability = new AbilityImpl(name, effectName, parameters, flags);
+        var ability = new AbilityImpl(name, effectName, parameters, flags, serialized.CanBeChanged ?? true);
         return ability;
     }
 }

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; }
 }