Port PathTokenizer (#478)

src/Microsoft.AspNetCore.Dispatcher/Internal/PathTokenizer.cs

@@ -8,7 +8,7 @@ using System.Diagnostics;
 using Microsoft.AspNetCore.Http;
 using Microsoft.Extensions.Primitives;
 
-namespace Microsoft.AspNetCore.Routing.Internal
+namespace Microsoft.AspNetCore.Dispatcher.Internal
 {
     public struct PathTokenizer : IReadOnlyList<StringSegment>
     {

src/Microsoft.AspNetCore.Routing/Dispatcher/TreeMatcher.cs

@@ -8,8 +8,8 @@ using System.Diagnostics;
 using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Dispatcher;
+using Microsoft.AspNetCore.Dispatcher.Internal;
 using Microsoft.AspNetCore.Http;
-using Microsoft.AspNetCore.Routing.Internal;
 using Microsoft.AspNetCore.Routing.Logging;
 using Microsoft.AspNetCore.Routing.Template;
 using Microsoft.AspNetCore.Routing.Tree;

src/Microsoft.AspNetCore.Routing/Template/TemplateMatcher.cs

@@ -4,8 +4,8 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
+using Microsoft.AspNetCore.Dispatcher.Internal;
 using Microsoft.AspNetCore.Http;
-using Microsoft.AspNetCore.Routing.Internal;
 
 namespace Microsoft.AspNetCore.Routing.Template
 {

src/Microsoft.AspNetCore.Routing/Tree/TreeRouter.cs

@@ -7,6 +7,7 @@ using System.Collections.Generic;
 using System.Diagnostics;
 using System.Text.Encodings.Web;
 using System.Threading.Tasks;
+using Microsoft.AspNetCore.Dispatcher.Internal;
 using Microsoft.AspNetCore.Routing.Internal;
 using Microsoft.AspNetCore.Routing.Logging;
 using Microsoft.AspNetCore.Routing.Template;

test/Microsoft.AspNetCore.Dispatcher.Test/Internal/PathTokenizerTest.cs

@@ -5,7 +5,7 @@ using Microsoft.AspNetCore.Http;
 using Microsoft.Extensions.Primitives;
 using Xunit;
 
-namespace Microsoft.AspNetCore.Routing.Internal
+namespace Microsoft.AspNetCore.Dispatcher.Internal
 {
     public class PathTokenizerTest
     {