Releases for Booking and Availability Management API

Changes since 11.1.0-rc1

Issue #3589122: Fix calendar endpoint to use BAT_STATE instead of BAT_EVENT

Problem: Sites using the BAT calendar REST endpoint experienced "Available" dates displaying as red/"N/A" on FullCalendar once more than a handful of availability events existed.

* Drupal Core REST events and resource for FullCalendar
* code cleanup, phpcs
* bugfix

Support to a most recent Fullcalendar version
Remove service module dependency
Use Drupal Core REST Api.
Remove obsolete code, test install.
Drupal Core REST service enabled
Improve cacheability

Drupal Core REST service enabled

Use Drupal Core REST Api.

Support to a most recent Fullcalendar version

Remove hal dependency
https://www.drupal.org/project/bat_api/issues/3418848
Thanks @SocialNicheGuru

A first beta for 3.1
All critical data loss and security bugs are resolved. The API is frozen. Target audience is developers who want to participate in testing, debugging and development of the project, and developers of other projects that interfaces the project. Not generally suitable for production sites, but may be used on some production sites if the site administrator knows the project well, and knows how to handle any outstanding issues.

Drupal 10 bugfix (Thanks @alina-basarabeanu), fix dependency, Code Standard

Fix https://www.drupal.org/project/bat_api/issues/3019531

Adds Drupal 9 compatibility

Adds hook_bat_api_events_index_calendar_alter

Release of BAT API 2.1 to work with BAT 2.1

The BAT API offers a streamlined way to pull data out of Rooms and display on calendars and it is also the first step towards a more generalized REST service for Rooms (and BAT).