Lots more work on implementing battling

PkmnLib.Dynamic/Events/Handling/EventData.cs

@@ -7,5 +7,9 @@ namespace PkmnLib.Dynamic.Events;
 /// </summary>
 public interface IEventData
 {
+    /// <summary>
+    /// The batch ID indicated which batch of events this belong to. Events with the same batch id
+    /// should be displayed together.
+    /// </summary>
     public EventBatchId BatchId { get; init; }
 }