title: Symfony4 code(directory) structure organisation
body: <p>How should I organise the directory/code structure with Symfony4?<br>
  I started with<br>
  <code>Controller\*BName*\*Fname*\...</code><br>
  <code>Entity\*Fname*\...</code><br>
  <code>Repository\*Fname*\...</code><br>
  <code>Form\*BName*\*Fname*\...</code><br>
  <code>Services\*Fname*\...</code>  </p>
  
  <p>Before Symfony4, my structure was<br>
  <code>*BName\Controller\*Fname*\...</code><br>
  <code>*BName\Entity\*Fname*\...</code><br>
   ...
  What is right way? </p>