Issue #1852966 by yched, Stalski, zuuperman, swentel: Rework entity display settings around EntityDisplay config entity.

Revert "Issue #1852966 by yched, swentel: Rework entity display settings around EntityDisplay config entity."

This reverts commit 8ad67af2.

Issue #1852966 by yched, swentel: Rework entity display settings around EntityDisplay config entity.

Issue #1843462 by ACF, aspilicious: Change entity_test() variables - entity_test_translation(), entity_cache_test() and entity_cache_test_label() to the state system.

Issue #1188388 by plach, peximo, YesCT | Gábor Hojtsy, fago, webchick, Bojhan, podarok, cosmicdreams, Berdir, aspilicious, bforchhammer, penyaskito: Added Entity translation UI in core.

Issue #1822150 by sun: Fixed EntityStorageControllerInterface::delete() should accept an array of entities, not IDs.

Issue #1763974 by tim.plunkett, EclipseGC, berdir, xjm, neclimdul, FabianX: Convert entity type info into plugins.

Issue #1696640 by fago, effulgentsia, tim.plunkett, dixon_, plach: Add a uniform Entity Property API.

Issue #1498874 by peximo, plach, Gábor Hojtsy, attiks: Provide language awareness to entity forms (introduce the form language concept).

Issue #1184272 by Berdir, corvus_ch, sun: Remove deprecated $conditions support from entity controller.

Issue #1615236 by Berdir, aspilicious: Merge entity controller interfaces, document and add default entity class definition.

Issue #1160566 by Dave Reid, bdlangton, aspilicious, fago, cosmicdreams, tstoeckler, tim.plunkett, Berdir, sun: Entity_load() is actually entity_load_multiple().

Issue #1277776 by sun: test cleanup for generic field/property getters/setters (with optional language support) for entities.

Issue #1277776 by fago, plach, Gábor Hojtsy, tim.plunkett, aspilicious, brantwynn: Add generic field/property getters/setters (with optional language support) for entities.

Revert "Issue #1277776 by fago, plach, Gábor Hojtsy, aspilicious, brantwynn: Add generic field/property getters/setters (with optional language support) for entities."

This reverts commit a8677733.

Issue #1277776 by fago, plach, Gábor Hojtsy, aspilicious, brantwynn: Add generic field/property getters/setters (with optional language support) for entities.

Issue #1184944 by fago, xjm, klausi, aspilicious, bojanz, Tor Arne Thune: Make entities classed objects, introduce CRUD support.