Feature Added: DG's Statements Content type

Signed-off-by: Kresimir Nikolic <kresimir.nikolic@gmail.com>
Feature updated: DG's Statement panel page replaced with the new view containing the exposed filter. Multimedia page: content moved from the top region to the hero

Signed-off-by: Kresimir Nikolic <kresimir.nikolic@gmail.com>
Module updated: exposed filters added to the DG's Statement listing

Signed-off-by: Kresimir Nikolic <kresimir.nikolic@gmail.com>
Merge branch 'master' of github.com:iaea/iaea-responsive