refactor: unify runtime sets, update naming of event channels (#17)

Some general refactors:
Turns HeroPartySO into a runtime set class.
Make runtime set an IEnumerable
Simplify name of events

Reviewed-on: #17
Reviewed-by: zephyr <zephyr@noreply.localhost>
Co-authored-by: Michael <mep053@gmail.com>
Co-committed-by: Michael <mep053@gmail.com>

Assets/Scripts/RuntimeSet/EnemyRuntimeSetSO.cs

@@ -0,0 +1,10 @@
+using DefaultNamespace;
+using UnityEngine;
+
+namespace RuntimeSet
+{
+    [CreateAssetMenu(fileName = "EnemyRuntimeSet",menuName = "Runtime Set/Enemy")]
+    public class EnemyRuntimeSetSO : RuntimeSetSO<Enemy>
+    {
+    }
+}

Assets/Scripts/RuntimeSet/EnemyRuntimeSetSO.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 5f1e329a7f6343f88553db21ffb55693
+timeCreated: 1690858329

Assets/Scripts/RuntimeSet/HeroUnitRuntimeSet.cs

@@ -0,0 +1,9 @@
+using UnityEngine;
+
+namespace RuntimeSet
+{
+    [CreateAssetMenu(fileName = "EnemyRuntimeSet",menuName = "Runtime Set/Hero Unit")]
+    public class HeroUnitRuntimeSetSO : RuntimeSetSO<HeroUnit>
+    {
+    }
+}

Assets/Scripts/RuntimeSet/HeroUnitRuntimeSet.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 0ec1a0df7a5949a2959596c722680f76
+timeCreated: 1691632762

Assets/Scripts/RuntimeSet/RuntimeSetSO.cs

@@ -0,0 +1,41 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace RuntimeSet
+{
+    public abstract class RuntimeSetSO<T> : ScriptableObject, IEnumerable<T>
+    {
+        [HideInInspector] [SerializeField] private List<T> items = new();
+    
+        protected IReadOnlyCollection<T> Items => items;
+        public bool IsEmpty => items.Count == 0;
+        public int Count => items.Count;
+    
+        public void Add(T item)
+        {
+            if (!items.Contains(item))
+            {
+                items.Add(item);
+            }
+        }
+    
+        public void Remove(T item)
+        {
+            if (items.Contains(item))
+            {
+                items.Remove(item);
+            }
+        }
+
+        public IEnumerator<T> GetEnumerator()
+        {
+            return items.GetEnumerator();
+        }
+
+        IEnumerator IEnumerable.GetEnumerator()
+        {
+            return GetEnumerator();
+        }
+    }
+}

Assets/Scripts/RuntimeSet/RuntimeSetSO.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 942f0916a83b433891dd4c6a9bbb50fd
+timeCreated: 1690858304