Issue #2862988 by timmillwood, catch: EntityOperations::entityPresave doesn't always set the correct default revision

Issue #2779647 by alexpott, Sam152, catch, scookie, yoroy, pericxc, timmillwood, tacituseu, jhedstrom, xjm, bojanz, tstoeckler: Add a workflow component, ui module, and implement it in content moderation

Issue #2787881 by timmillwood, amateescu, Sam152, dawehner, alexpott: Moderating a non-translatable entity type throws exception

Issue #2781207 by timmillwood, dawehner: Use class resolver for abstracted Content Moderation classes

Issue #2725533 by timmillwood, alexpott, amateescu, webchick, dixon_, larowlan, dawehner, catch, Crell, Bojhan, jibran, Wim Leers, agentrickard, Berdir: Add experimental content_moderation module