Replace packages.config with project.json

This way we can use a wildcard for the version, which helps
prevent issues when referencing MicroBuild packages.

Author: Paul van Brenk

EnvironmentSetup.ps1

@@ -68,7 +68,7 @@ if ($microbuild -or ($vstarget -eq "15.0" -and -not $skipRestore)) {
     Write-Output ""
     Write-Output "Installing Nuget MicroBuild packages"
 
-    & "$rootdir\Nodejs\.nuget\nuget.exe" restore "$rootdir\Nodejs\Setup\swix\packages.config" -PackagesDirectory "$packagedir"
+    & "$rootdir\Nodejs\.nuget\nuget.exe" restore "$rootdir\Nodejs\Setup\swix\project.json" -PackagesDirectory "$packagedir" -ConfigFile "$rootdir\Nodejs\.nuget\nuget.config"
 
     # If using the -microbuild switch, ONLY do the microbuild restore (this behavior is expected by the build servers).
     if($microbuild) {

Nodejs/Setup/swix/Microsoft.VisualStudio.NodejsTools.Targets.swixproj

@@ -1,5 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?> 
 <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+
+  <PropertyGroup>
+      <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
+  </PropertyGroup>
+
   <Import Project="..\SetupProjectBefore.settings" />
   <Import Project="$(PackagesPath)\MicroBuild.Core.0.2.0\build\MicroBuild.Core.props" />
 

Nodejs/Setup/swix/NodejsTools.Profiling.vsmanproj

@@ -1,6 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="15.0" DefaultTargets="Build"
          xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+
+    <PropertyGroup>
+        <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
+    </PropertyGroup>
+
     <Import Project="..\SetupProjectBefore.settings" />
 
     <PropertyGroup>

Nodejs/Setup/swix/NodejsTools.vsmanproj

@@ -1,6 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="15.0" DefaultTargets="Build"
          xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+
+    <PropertyGroup>
+        <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
+    </PropertyGroup>
+
     <Import Project="..\SetupProjectBefore.settings" />
 
     <PropertyGroup>

Nodejs/Setup/swix/packages.config

@@ -0,0 +1,12 @@
+{
+  "dependencies": {
+    "MicroBuild.Core": "0.2.0",
+    "MicroBuild.Plugins.SwixBuild": "1.0.*"
+  },
+  "frameworks": {
+    "net461": {}
+  },
+  "runtimes": {
+    "win": {}
+  }
+}