title: use devtools imported packages in a shiny app
body: <p>I am developing a page with devtools and using DESCRIPTION imports to load appropriate packages. I also added a Shiny app to my package structure (<a href="https://deanattali.com/2015/04/21/r-package-shiny-app/" rel="nofollow noreferrer">according to the article</a>), so it looks as the following:</p>
  <pre class="lang-html prettyprint-override"><code>- mypacakge
    |- inst
       |- shiny-examples
          |- myapp
             |- ui.R
             |- server.R
    |- R
       |- runExample.R
       |- ...
    |- DESCRIPTION
    |- ...
  </code></pre>
  
  <p>Now, the shiny app works when I add the <code>library</code> instructions at the top of the ui/server files. Is there any way to not paste these instructions, but simply use the DESCRIPTION imported packages? And also, is there any way to make shiny app see package functions from in R folder without running <code>devtools::load_all</code> in Shiny?</p>