Add NuGet package tools

tools/nuget/pushnuget.ps1

@@ -0,0 +1,28 @@
+Param(
+    [Parameter(Mandatory, Position = 0)]
+    [string]$APIKey
+)
+
+dotnet build -c Release
+if ($LASTEXITCODE -ne 0) {
+    Write-Error "Build failed"
+    exit 1
+}
+
+$count = 0
+$packages = (Get-ChildItem */bin/Release/*.nupkg)
+foreach ($package in $packages) {
+    Write-Progress "Pushing packages" -CurrentOperation "Pushing $($package.Name)" -PercentComplete (($count * 100.0) / $packages.Length)
+
+    dotnet nuget push -k $APIKey -s https://api.nuget.org/v3/index.json $package.FullName
+
+    if ($LASTEXITCODE -ne 0) {
+        Write-Error "Unable to push $($package.Name)"
+        exit 1
+    }
+
+    $count++
+}
+
+Write-Progress "Done" -Completed
+Write-Output "Successfully pushed $count packages"