Integration from override to CoreBundle : adding headers, footers, tabs and inscription button
Merge branch 'feature/headers' into develop

* feature/headers:
  Integration from override to CoreBundle : adding headers, footers, tabs and inscription button
Merge branch 'develop' of https://github.com/Solerni-R1-1/CoreBundle into develop

* 'develop' of https://github.com/Solerni-R1-1/CoreBundle:
  custom perrors pages
  add video resource picker