Add theme debugging info

@todo: Remove before deploying to a production environment. Or
refactor this as a setting in the theme, or make a relevant module.

To access the debugging info, use the 'Inspect' console in your
favorite browser.

If developing locally, you may also want to enable Twig debugging
in twig.config in your services.yml file.

Author: fureigh

themes/nsf/nsf.theme

@@ -0,0 +1,14 @@
+<?php
+
+/**
+ * Implements hook_theme_suggestions_HOOK_alter() for form templates.
+ * @param array $suggestions
+ * I found this code on drupal.org https://www.drupal.org/node/2724333
+ * @param array $variables
+ */
+function subtheme_theme_suggestions_block_alter(array &$suggestions, array $variables) {
+    // Block suggestions for custom block bundles.
+    if (isset($variables['elements']['content']['#block_content'])) {
+        array_splice($suggestions, 1, 0, 'block__bundle__' . $variables['elements']['content']['#block_content']->bundle());
+    }
+}