New features

Bug Fixes and new features from the following issues:

Bugs:

New Features:

• From this release, the Apigee Edge module is only compatible with Drupal 8.7.0 and above. We had to drop Drupal 8.6.x support because of a change in Drupal core's API that does not allow us to support both versions at the same time.
• The storage where the Apigee Edge credentials get stored now can be easily changed on the Connection configuration form in the "Advanced settings" fieldset.

- login button with optional agid-test link
- multiportal settings
- unique metadata

This is a non-trivial update, and includes manual steps.

Allows to add custom terms