Issue #2399931 by dawehner, yched: Generic entity api field handler should live in views module not in field module

Revert "Issue #2399931 by dawehner, yched: Generic entity api field handler should live in views module not in field module"

Oops. Wrong patch!

This reverts commit 938051c4.

Issue #2399931 by dawehner, yched: Generic entity api field handler should live in views module not in field module

Issue #2326719 by plach, effulgentsia: Move pseudo-private table mapping functions from ContentEntityDatabaseStorage to public API of DefaultTableMapping.

Issue #2287727 by yched, swentel, alexpott: Rename Field[instance]Config classes and entity types (again).

Issue #2200821 by yched, plopesc, Berdir, claudiu.cristea, swentel: Rename Fieldinterface and FieldInstanceInterface.

Issue #2165155 by Berdir, tim.plunkett: Change $entity_type to $entity_type_id and $entity_info to $entity_type/$entity_types.

Issue #2005716 by tim.plunkett, msonnabaum, dawehner, alexpott, effulgentsia: Promote EntityType to a domain object.

Issue #1953408 by swentel, aspilicious, andypost, yched: Remove ArrayAccess BC layer from field config entities.

Issue #2076141 by lokapujya: Unneeded dance around 'Node'/'Content' entity label in views integration code.

Issue #1497374 by yched, chx, amateescu, plach, Damien Tournoud, fago, swentel: Switch from Field-based storage to Entity-based storage.

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