Custom ExternalAnnotations location in R# plugin

I'm trying to get a R# plugin to deploy an external annotations file to the correct location.
My TechTalk.SpecFlow.ExternalAnnotations.xml file works like a charm when manually copy it to either of following locations

    %resharperInstallDir%v8.2\Bin\ExternalAnnotations
    %solutionDir%\bin\[Debug|Release]

For the first I need a VS restart.

Now I want to wrap it in a plugin so based on the provided examples my plugin folder structure is as follows:

     %.nuspecDir%\ReSharper\vAny\annotations\TechTalk\SpecFlow\TechTalk.SpecFlow.ExternalAnnotations.xml

After installing the pluign (and restarting/rebuilding), I can't find the xml file anywhere.

Do I need to add the following? If so what should be at the '?'

    <files>
         <file src="?" target="?" />
    </files>

What else am I doing wrong?


Plugin: https://resharper-plugins.jetbrains.com/packages/TechTalk.SpecFlow.ExternalAnnotations/