use rule table instead a single jump funcfor state machine

StgSharp.Common/State/ISimpleStateMachine.cs

@@ -1,4 +1,4 @@
-//-----------------------------------------------------------------------
+//-----------------------------------------------------------------------
 // -----------------------------------------------------------------------
 // file="ISimpleStateMachine"
 // Project: StgSharp
@@ -28,24 +28,29 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Numerics;
 using System.Text;
 using System.Threading.Tasks;
 
 namespace StgSharp.State
 {
     public interface ISimpleStateMachine<TStateNode, TStateLabel, TStateContext>
-        where TStateNode: ISimpleStateMachineNode<TStateLabel, TStateContext>
-        where TStateLabel: unmanaged, Enum
-        where TStateContext: StateContext
+        where TStateNode : ISimpleStateMachineNode<TStateLabel, TStateContext>
+        where TStateLabel : unmanaged, IEquatable<TStateLabel>
+        where TStateContext : StateContext
     {
 
-        ref readonly TStateNode this[TStateLabel label] { get; }
+        ref readonly TStateNode this[
+                                TStateLabel label
+        ] { get; }
 
         ref readonly TStateNode GetCurrentStateNode();
 
         void Reset();
 
-        bool TryMoveNext(TStateContext ctx);
+        bool TryMoveNext(
+             TStateContext ctx
+        );
 
     }
 }