add skeleton of hero attributes

Assets/Scripts/HeroAttributes.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class HeroAttributes : ScriptableObject
+{
+    // TODO(zeph): does these being private make it hard to create a new hero?
+    // what about applying effects?
+    [SerializeField] private Attribute STR;
+    [SerializeField] private Attribute MAG;
+    [SerializeField] private Attribute DEX;
+    [SerializeField] private Attribute CON;
+    [SerializeField] private Attribute CHA;
+    [SerializeField] private Attribute FTH;
+}

Assets/Scripts/HeroAttributes.cs.meta

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