Add PHP 8.0 support

• Update composer and PHP libraries
• Require PHP >=7.4 or >=8.0

Fix bug with dynamic fields

Fields generated via code are not reached via the WP_Query function. So instead we query based on the key of the group.

Fix bug with wrong title name

In some cases the ACF was getting a parent that was not part of the ACF layout
due the fact that was using a wrong parameter to get the correct ACF by ID.

Insted of using get_posts we changed to use WP_Query in order to be more releiable
and update the list of parameters required.

#30

Fix group naming with new versions of ACF

Merge pull request #29 from moxie-lean/acf-update

Acf update

Fix on data grouping

Merge pull request #28 from moxie-lean/fix-groupping

Fix grouping issue

Fix issue of undefined function.

• Fixes #24

REST API Support

Merge pull request #23 from moxie-lean/rest-api

Rest api

Update namespaces

Update from leean to lean namespace and package.

Backwards compatibly

Prevent warnings.

Fix groupings by ACF group for local groups

Merge pull request #12 from moxie-leean/local-group-fix

Fix for local groups