Plugin: H5P Import: Add plugin to official plugins list

Author: ywarnier

main/inc/lib/plugin.lib.php

@@ -242,6 +242,7 @@ public function getOfficialPlugins()
  'google_meet',
  'grading_electronic',
  'h5p',
+ 'h5pimport',
  'hello_world',
  'ims_lti',
  'justification',