conditional_fields 8.x-1.0-alpha9

Changes since 8.x-1.0-alpha8:

• #3144407 by paulocs: Your README.md does not follow best practices (#)
• #3144437 by thalles: Replace deprecated function element_info_property (#)
• #3144474 by thalles: Fix namespace in conditional_fields/src/Plugin/conditional_fields/handler/extra_contrib/LinkAddressfield.php (#)
• #3033389 by thalles: Drupal dependency injection on src/Conditions.php (#)
• #3144535 by thalles: Global constants should not be used (#)
• #3144552 by thalles: Replace global constants usage (#)
• #3144563 by thalles: Remove constants definition of .module (#)
• #3145379 by thalles: Fix standards and good practices in conditional_fields.install (#)
• #3146006 by thalles: License "GPL-2.0+" is a deprecated (#)
• #3151849 by paulocs, thalles: Make ConditionalFieldsFormHelper.php a service (#)
• #3084387 by Megha_kundar, super_romeo, ultrabob, EmiliaC, Steven McCoy, JvE, paulocs: Conditional fields and *required behavior (#)
• Revert "Issue #3151849 by paulocs, thalles: Make ConditionalFieldsFormHelper.php a service" (#)
• Revert "Issue #3084387 by Megha_kundar, super_romeo, ultrabob, EmiliaC, Steven McCoy, JvE, paulocs: Conditional fields and *required behavior" (#)
• #3084387 by Megha_kundar, super_romeo, ultrabob, EmiliaC, Steven McCoy, JvE, paulocs, thalles, Kris77, sashken2: Conditional fields and *required behavior (#)
• #3154310 by paulocs: Add local task menu item for available entities (#)
• #3155659 by paulocs: Integrate with Taxonomy (#)
• #3155890 by paulocs: conditional_fields.tab route does not exist anymore (#)
• #3147254 by Project Update Bot: Automated Drupal 9 compatibility fixes (#)