Begin work on outlining dynamic side

PkmnLib.Dynamic/Models/BattleChoiceQueue.cs

@@ -0,0 +1,13 @@
+namespace PkmnLib.Dynamic.Models;
+
+/// <summary>
+/// The ChoiceQueue is used to run choices one by one.
+/// </summary>
+/// <remarks>
+/// It functions internally by holding a list of choices, and one by one setting items that have been returned to null,
+/// It holds several helper functions to change the turn order while doing the execution. This is needed, as several
+/// moves in Pokémon actively mess with this order.
+/// </remarks>
+public class BattleChoiceQueue
+{
+}