SPRNET-1508 convenience batch file to push all nupkgs to nuget

nuget-packages/push-all-to-nuget.cmd

@@ -0,0 +1,17 @@
+@echo off
+echo *** Pushing all packages in this folder to NuGet.org ***
+echo Note: this assumes the APIKey has already been set on this computer.
+echo If not, run the following command to set the ApiKey:
+echo            Nuget.exe setApiKey [API_KEY]
+echo .
+for /f %%F in ('dir /b *.nupkg') DO CALL :INVOKE %%F
+GOTO :EOF
+
+:INVOKE
+echo .
+echo Processing file %1 ...
+echo .
+..\build-support\tools\NuGet\NuGet.exe push %1"
+echo .
+echo                       ...complete!
+GOTO :EOF