MDL-72896 Accessibility: Make html_table responsive

The tables are generated by html_table will responsive across viewports

lib/outputcomponents.php

@@ -2321,6 +2321,10 @@ class html_writer {
         }
         $output .= html_writer::end_tag('table') . "\n";
 
+        if ($table->responsive) {
+            return self::div($output, 'table-responsive');
+        }
+
         return $output;
     }
 
@@ -2772,6 +2776,9 @@ class html_table {
      */
     public $captionhide = false;
 
+    /** @var bool Whether to make the table to be scrolled horizontally with ease. Make table responsive across all viewports. */
+    public $responsive = true;
+
     /**
      * Constructor
      */