Update vccptools version # (#1554)

Author: KevinRansom

packages.config

@@ -20,5 +20,5 @@
   <package id="System.ValueTuple" version="4.0.0-rc3-24212-01" />
   <package id="BenchmarkDotNet" version="0.9.8"/>
   <package id="BenchmarkDotNet.Diagnostics.Windows" version="0.9.8"/>
-  <package id="VisualCppTools" version="14.0.24516-Pre"/>
+  <package id="VisualCppTools" version="14.0.24519-Pre"/>
 </packages>

tests/RunTests.cmd

@@ -18,7 +18,7 @@ if not exist "%~dp0..\packages\NUnit.Console.3.0.0\tools\" (
 SET NUNIT3_CONSOLE=%~dp0..\packages\NUnit.Console.3.0.0\tools\nunit3-console.exe
 SET FSI_TOOL=%~dp0..\%FLAVOR%\net40\bin\Fsi.exe
 
-set link_exe=%~dp0..\packages\VisualCppTools.14.0.24516-Pre\lib\native\bin\link.exe
+set link_exe=%~dp0..\packages\VisualCppTools.14.0.24519-Pre\lib\native\bin\link.exe
 if not exist "%link_exe%" (
     set saved_errorlevel=1
     echo Error: failed to find '%link_exe%' use nuget to restore the VisualCppTools package