File _multibuild of Package 86box

<multibuild>
  <package>ndr</package>
  <package>dev</package>
  <package>devodr</package>
  <package>qt</package>
  <package>qt-ndr</package>
  <package>qt-dev</package>
  <package>qt-devodr</package>
  <package>validator</package>
</multibuild>