Initial pass on wave spawning.

Assets/Scripts/Events/SpawnWaveSOEventChannelSO.cs

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+using UnityEngine;
+using UnityEngine.Events;
+using Wave;
+
+namespace Events
+{
+    [CreateAssetMenu(menuName = "Events/Spawn Wave SO Event Channel")]
+    public class SpawnWaveSOEventChannelSO : ScriptableObject
+    {
+        public event UnityAction<SpawnWaveSO> OnEventRaised;
+
+        public void RaiseEvent(SpawnWaveSO spawnWave)
+        {
+            OnEventRaised?.Invoke(spawnWave);
+        }
+    }
+}

Assets/Scripts/Events/SpawnWaveSOEventChannelSO.cs.meta

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+fileFormatVersion: 2
+guid: 908e283bf3a54c859a0771fd8aed7bce
+timeCreated: 1690857571