EZP-21743: Implemented landing_page.html.twig, first zone layout and "campaign" block type templates
EZP-21743: Fixed campaign block
EZP-21743: Added block_2_columns_2_rows block template
EZP-21743: Implemented gallery_viewer and gallery_item views for "image" content type.

But gallery JS is not working :-(
EZP-21743: Added fallback value for alt attribute in ezimage_simple.html.twig
EZP-21743: Implemented block_item and block_item_campaign views for image and article
Removed unnecessary test
EZP-21743: Added "highlighted" block
EZP-21743: Added "content_grid_1col_2rows" block

Items are rendered thorugh legacy (products)
EZP-21743: Fixed content name to get translated one

Now that it's possible to retrieve content name from a ContentInfo object with ez_content_name() :-)
EZP-21743: Added feed_reader block
EZP-21743: Refactored gallery to make it work properly
EZP-21743: "Selected video" block
EZP-21743: Used hinclude for feed reader block rendering
Removed un-necessary condition
EZP-21743: Fixed indentation