dev #128223 : index pages in catalog

• on variable INDEXABLE_PAGES, profiles have a new form tab "Indexation"
• if indexable is checked, a pseudo record is created with sumary in 335 and keywords as subjects
• a cosmogramme phase index all pages

FEATURES/128223

+        '128223' =>
+            ['Label' => $this->_('Indexer les profils/pages Bokeh au catalogue'),
+             'Desc' => $this->_('En activant l\'option INDEXABLE_PAGES, les profils/pages Bokeh peuvent être indexées et retrouvées via la recherche publique'),
+             'Image' => '',
+             'Video' => 'https://www.youtube.com/watch?v=n3iKPjUHngQ',
+             'Category' => $this->_('Pages'),
+             'Right' => function($feature_description, $user) {return true;},
+             'Wiki' => 'https://wiki.bokeh-library-portal.org/index.php?title=Configurer_un_profil#Indexation',
+             'Test' => '',
+             'Date' => '2021-09-15'],
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