crop 8.x-2.0

Finally, for all who have been waiting: a stable release of Crop API 2.0!

This release is Drupal 9 compatible, and requires Drupal 8.7.7 or later. It fixes several small problems and includes a major performance improvement. The following issues are addressed in this release:

• #2975722: Many slow queries for lookup up crop of a image_style + file
• #3096959: Drupal 9 deprecated code report
• #3072690: Remove declaration of the translation handler for Crop Entity Type
• #3042587: Remove deprecated function calls and raise the minimum version of core to 8.7
• #2960165: Help is missing on module file
• #2937337: crop_media_entity dependency issue when upgrading from 1.3.0 to 1.4.0
• #3088355: crop_type config entity requires a config_export key since Drupal 8.7
• #3104867: Add a dedicated test to ensure the update path works
• #3095617: Add defaultTheme in tests extending BrowserTestBase.
• #3033549: Remove DEVELOPING.md
• #3033552: Remove travis info analyzing old repo in README.md