Convert perf solution to DNX

Author: Anastasia Baranchenkova

test/PerfTest/Aspnet5_EmptyApp_46/Aspnet5_EmptyApp_46.kproj renamed to test/PerfTest/Aspnet5_EmptyApp_46/Aspnet5_EmptyApp_46.xproj

@@ -4,7 +4,6 @@
     <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0</VisualStudioVersion>
     <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
   </PropertyGroup>
-  <Import Project="$(VSToolsPath)\AspNet\Microsoft.Web.AspNet.Props" Condition="'$(VSToolsPath)' != ''" />
   <PropertyGroup Label="Globals">
     <ProjectGuid>41409009-8c50-4835-8777-cf9706f50ab1</ProjectGuid>
     <RootNamespace>Aspnet5_EmptyApp_46</RootNamespace>
@@ -15,5 +14,6 @@
     <SchemaVersion>2.0</SchemaVersion>
     <DevelopmentServerPort>28238</DevelopmentServerPort>
   </PropertyGroup>
-  <Import Project="$(VSToolsPath)\AspNet\Microsoft.Web.AspNet.targets" Condition="'$(VSToolsPath)' != ''" />
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.Props" />
+  <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.targets" />
 </Project>

test/PerfTest/PerfTest.sln

@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 14
-VisualStudioVersion = 14.0.22609.0
+VisualStudioVersion = 14.0.22823.1
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PerfTest", "PerfTest\PerfTest.csproj", "{12569DBE-2396-46BF-9ED0-B5221F1C30AE}"
 EndProject
@@ -10,7 +10,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		Local.testsettings = Local.testsettings
 	EndProjectSection
 EndProject
-Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Aspnet5_EmptyApp_46", "Aspnet5_EmptyApp_46\Aspnet5_EmptyApp_46.kproj", "{41409009-8C50-4835-8777-CF9706F50AB1}"
+Project("{8BB2217D-0F2D-49D1-97BC-3654ED321F3B}") = "Aspnet5_EmptyApp_46", "Aspnet5_EmptyApp_46\Aspnet5_EmptyApp_46.xproj", "{41409009-8C50-4835-8777-CF9706F50AB1}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution