Implement input config scene loading and saving.

Assets/Cryville/Crtr/InputProxy.cs

@@ -8,7 +8,7 @@ using UnityEngine;
 using Logger = Cryville.Common.Logger;
 
 namespace Cryville.Crtr {
-	public class InputProxy {
+	public class InputProxy : IDisposable {
 		readonly PdtEvaluator _etor;
 		readonly PdtRuleset _ruleset;
 		readonly Judge _judge;
@@ -148,6 +148,22 @@ namespace Cryville.Crtr {
 		}
 		public void Deactivate() { foreach (var src in _sproxies.Keys) src.Handler.Deactivate(); }
 
+		~InputProxy() {
+			Dispose(false);
+			GC.SuppressFinalize(this);
+		}
+		public void Dispose() {
+			Dispose(true);
+		}
+		protected void Dispose(bool disposing) {
+			if (disposing) {
+				Deactivate();
+				foreach (var proxy in _tproxies.Values) {
+					proxy.Source.Value.Handler.OnInput -= OnInput;
+				}
+			}
+		}
+
 		readonly object _lock = new object();
 		static readonly int _var_value = IdentifierManager.SharedInstance.Request("value");
 		static readonly PropOp.Arbitrary _arbop = new PropOp.Arbitrary();