Add config schema

Closes #3479851

config/schema/responsivewrappers.schema.yml

@@ -23,3 +23,21 @@ responsivewrappers.settings:
     table_class:
       type: string
       label: 'Custom table class'
+
+# Plugin \Drupal\responsivewrappers\Plugin\Filter\FilterResponsiveWrappers
+filter_settings.filter_bootstrap_responsive_wrapper:
+  type: filter
+  label: 'Responsive wrappers filter'
+  mapping:
+    responsive_iframe:
+      type: boolean
+      label: 'Responsive video'
+    responsive_iframe_pattern:
+      type: string
+      label: 'Source video pattern detection'
+    responsive_table:
+      type: boolean
+      label: 'Responsive tables'
+    responsive_image:
+      type: boolean
+      label: 'Responsive images'