1312: Implement initial vocabulary browsing mechanism

Task-Url: https://pm.winseda.de/issues/1312

messages_de.properties

@@ -359,6 +359,7 @@
 ~eu.dariah.de.minfba.search.options.actions.reset_filters                                       = Filter entfernen
 ~eu.dariah.de.minfba.search.options.actions.select_all_collections                              = Alle
 ~eu.dariah.de.minfba.search.options.actions.select_collections                                  = Ausw\u00E4hlen...
+~eu.dariah.de.minfba.search.options.available_filters                                           = Verf\u00FCgbare Filter
 ~eu.dariah.de.minfba.search.options.extended                                                    = Erweiterte Optionen
 ~eu.dariah.de.minfba.search.options.include_original                                            = Originaldaten anzeigen
 ~eu.dariah.de.minfba.search.options.n_more                                                      = weitere
@@ -452,6 +453,7 @@
 ~eu.dariah.de.minfba.search.view.dataset.available_datasets                                     = Verf\u00FCgbare Datenquellen
 ~eu.dariah.de.minfba.search.view.dataset.label.additional_data                                  = Zus\u00E4tzlich geladene Daten, Dokumente und Medien nach Spezifikation in der DME.
 ~eu.dariah.de.minfba.search.view.dataset.label.document_count                                   = Dokumente, die \u00FCber den konfigurierten Endpunkt verf\u00FCgbar sind.
+~eu.dariah.de.minfba.search.view.filters.location                                               = Ort
 ~eu.dariah.de.minfba.search.view.filters.subject                                                = Genre
 ~eu.dariah.de.minfba.search.view.item.additional_data                                           = Weiterf\u00FChrende Daten
 ~eu.dariah.de.minfba.search.view.item.admin_data                                                = Informationen f\u00FCr Administratoren

messages_en.properties

@@ -239,6 +239,7 @@
 ~eu.dariah.de.minfba.search.options.actions.reset_filters                                       = Reset filters
 ~eu.dariah.de.minfba.search.options.actions.select_all_collections                              = All
 ~eu.dariah.de.minfba.search.options.actions.select_collections                                  = Select...
+~eu.dariah.de.minfba.search.options.available_filters                                           = Available filters
 ~eu.dariah.de.minfba.search.options.extended                                                    = Extended options
 ~eu.dariah.de.minfba.search.options.include_original                                            = Show original data
 ~eu.dariah.de.minfba.search.options.n_more                                                      = more
@@ -332,6 +333,7 @@
 ~eu.dariah.de.minfba.search.view.dataset.available_datasets                                     = Available datasources
 ~eu.dariah.de.minfba.search.view.dataset.label.additional_data                                  = Additionally loaded data, documents and media as specified by means of the DME.
 ~eu.dariah.de.minfba.search.view.dataset.label.document_count                                   = Documents that are available through the configured endpoint.
+~eu.dariah.de.minfba.search.view.filters.location                                               = Location
 ~eu.dariah.de.minfba.search.view.filters.subject                                                = Subject
 ~eu.dariah.de.minfba.search.view.item.additional_data                                           = Additional Data
 ~eu.dariah.de.minfba.search.view.item.admin_data                                                = Administrator information