New features

#2913982: Add support for search api
#2983674: Date attribute is missing

Introduced the new feature for translation of configuration files for the module, and also number of UTF ranges for previously not-covered world language scripts.

Reverted ResponseEvent to FilterResponse event, making module d8 friendly again
Added 3128141 - Remove dependency on commerce_checkout

changes since alpha9:

- BC breaking changes - see change records!
Added support for json formatting: #3115787: Lupus CE Renderer JSON formatter

* 89d5505 - Handle cache metadata during normalization.
* c663818 - Issue #3144191: Json serialization layout builder support: Remove drupal-block wrapper custom elements from layout builder markup.

• Some code refactoring and small adjustments for the base widget to be able to work with seconds storage field option
• README updates
• Issue #2998094: Fix start time is not saved
• Issue #3065642: Fix end time can be earlier than the start time
• Issue #3138885: Drupal 9 readiness