Bug fixes

Uses session rather than private tempstore, which fixes issue where LTI context could persist during non LTI requests/sessions.

• Issue #3062952: Change drupal_set_message() function
• Issue #3063196: Cache results to avoid api call on every page reload
• Fix XML output error
• Change getData() output to array
• Add test page tab
• Code refactoring

• Issue #3063196 by montesajudy: Cache results to avoid api call on every page reload
• Fix error XML output
• Change result of ipstack() function

- Minor fixes

- Minor Fixes

Fix below issues:
https://www.drupal.org/project/accordion_menus/issues/3053792
https://www.drupal.org/project/accordion_menus/issues/3049215
https://www.drupal.org/project/accordion_menus/issues/3038954