How to add a pre-build event to visual studio 2015 by nuget?

I  create a code generator(WebCompiler.exe) for my mvc web project.

Then I add a pre-build event command line "$(TargetDir)WebCompiler.exe" manually.

Before Visutal Studio compiled,WebCompiler.exe create Models from Action automatic.

So that when I write "ViewBag.",The editor can support prompt automatic.

Then I make this in nuget,but i didn't know how to add "$(TargetDir)WebCompiler.exe" to visual studio by nuget.

Is there any interface for this?