MDL-64702 badges: Add missing data to backup

Backup and restore of badges is missing data:
* related badges
* alignments
* endorsement

Also added to "clone" (duplicate a badge).

lib/badgeslib.php

@@ -315,6 +315,28 @@ class badge {
                 $crit->make_clone($new);
             }
 
+            // Copy endorsement.
+            $endorsement = $this->get_endorsement();
+            if ($endorsement) {
+                unset($endorsement->id);
+                $endorsement->badgeid = $new;
+                $newbadge->save_endorsement($endorsement);
+            }
+
+            // Copy alignments.
+            $alignments = $this->get_alignments();
+            foreach ($alignments as $alignment) {
+                unset($alignment->id);
+                $alignment->badgeid = $new;
+                $newbadge->save_alignment($alignment);
+            }
+
+            // Copy related badges.
+            $related = $this->get_related_badges(true);
+            if (!empty($related)) {
+                $newbadge->add_related_badges(array_keys($related));
+            }
+
             // Trigger event, badge duplicated.
             $eventparams = array('objectid' => $new, 'context' => $PAGE->context);
             $event = \core\event\badge_duplicated::create($eventparams);
@@ -838,7 +860,7 @@ class badge {
      *
      * @return array List content competencies.
      */
-    public function get_alignment() {
+    public function get_alignments() {
         global $DB;
         return $DB->get_records('badge_competencies', array('badgeid' => $this->id));
     }