added iframe tool on ckeditor

config/sync/core.extension.yml

@@ -21,6 +21,7 @@ module:
   bulkdelete: 0
   checklistapi: 0
   ckeditor: 0
+  ckeditor_iframe: 0
   config: 0
   config_devel: 0
   config_filter: 0
@@ -51,6 +52,7 @@ module:
   entity_browser: 0
   entity_browser_enhanced: 0
   entity_reference_revisions: 0
+  fakeobjects: 0
   field: 0
   field_group: 0
   field_ui: 0

config/sync/editor.editor.wysiwyg.yml

@@ -49,6 +49,10 @@ settings:
             - Paste
             - PasteText
             - PasteFromWord
+        -
+          name: iframe
+          items:
+            - Iframe
   plugins:
     drupallink:
       linkit_enabled: true

config/sync/filter.format.wysiwyg.yml

@@ -51,7 +51,7 @@ filters:
     status: false
     weight: -42
     settings:
-      allowed_html: '<em> <strong> <cite> <blockquote cite> <code> <ul type> <ol start type> <li> <dl> <dt> <dd> <h2 id> <h3 id> <h5 id> <h6 id> <u> <a href hreflang !href accesskey id rel target title data-entity-type data-entity-uuid data-entity-substitution> <p> <h1> <pre> <h4 id class="inter-titre"> <img src alt data-entity-type data-entity-uuid data-entity-substitution data-align data-caption>'
+      allowed_html: '<em> <strong> <cite> <blockquote cite> <code> <ul type> <ol start type> <li> <dl> <dt> <dd> <h2 id> <h3 id> <h5 id> <h6 id> <u> <a href hreflang !href accesskey id rel target title data-entity-type data-entity-uuid data-entity-substitution> <p> <h1> <pre> <h4 id class="inter-titre"> <img src alt data-entity-type data-entity-uuid data-entity-substitution data-align data-caption> <iframe>'
       filter_html_help: true
       filter_html_nofollow: false
   filter_align: