Bug fixes

#2552823: Error when using Views Bulk Operation form
#1300590: Admin cannot access role tab

This is a development snapshot.

• (Fix/Feature) The config "custom_thumbnail_field" was added, but never used.
• (Refactor) Replace reading imagick directly with using the 'imagemagick.format_mapper' service.
• Misc cleanup

Issue #3065334 by ygerasimov: Remove hardcoded IndexFactory
Issue #2918138 by meanderix, agoja, dakku: Support for alterParams()
Issue #2871856 by alejomc, takim, skek, m4olivei, mpastas, bander2, stevenlafl: Fulltext search on Views not working
Issue #3025114 by oknate, petermallett: Reference to Solr should be updated to Elasticsearch
Issue #2978005 by sonnykt, Leksat, Renrhaf: Failed to parse node status

Initial alpha release

Fix compatibility issue with Drupal < 8.7.x