title: Jenkins EnvInject plugin + Pipeline job
body: <p>I would like to use EnvInject plugin within my pipeline job. So, I have a possibility to set checkbox "Prepare an environment for the run", but there is no action "Inject environment variables", like in freestyle job. 
  I declared my variables in "Properties Content" block:<a href="https://i.stack.imgur.com/VMNgD.png" rel="noreferrer"><img src="https://i.stack.imgur.com/VMNgD.png" alt="enter image description here"></a></p>
  
  <p>How to inject environment variables in pipeline job using EnvInject?</p>