VRC behaviors to work on both States and SSM's.

All VRC-specific behavior helpers are now extension
functions that can be called using AacAnimatorNode

Framework/Editor/V0/AacAnimatorNode.cs

@@ -1,3 +1,5 @@
+using System;
+using System.Collections.Generic;
 using UnityEngine;
 
 // ReSharper disable once CheckNamespace
@@ -14,6 +16,8 @@ namespace AnimatorAsCode.V0
         protected readonly AacFlStateMachine ParentMachine;
         protected readonly IAacDefaultsProvider DefaultsProvider;
 
+        protected Dictionary<Type, object> behaviorCache = new Dictionary<Type, object>();
+
         protected AacAnimatorNode(AacFlStateMachine parentMachine, IAacDefaultsProvider defaultsProvider)
         {
             ParentMachine = parentMachine;
@@ -53,5 +57,7 @@ namespace AnimatorAsCode.V0
             SetPosition(otherPosition + new Vector3(shiftX * DefaultsProvider.Grid().x, shiftY * DefaultsProvider.Grid().y, 0));
             return (TNode) this;
         }
+
+        public abstract TBehaviour EnsureBehaviour<TBehaviour>() where TBehaviour : StateMachineBehaviour;
     }
 }