Issue #2891215 by plach, timmillwood, hchonov, amateescu, catch, gabesullice: Add a way to track whether a revision was default when originally created

(cherry picked from commit 49c6761b)

Revert "Issue #2891215 by plach, timmillwood, hchonov, amateescu, catch, gabesullice: Add a way to track whether a revision was default when originally created"

This reverts commit 9182b216.

Issue #2891215 by plach, timmillwood, hchonov, amateescu, catch, gabesullice: Add a way to track whether a revision was default when originally created

(cherry picked from commit 49c6761b)

Issue #2626924 by Wim Leers, tedbow, dawehner, frob, martin107, damiankloip, dagmar, almaudoh, Berdir, larowlan, amateescu: Include processed text in normalizations: "text" field type's "processed" computed property should be non-internal and carry cacheability metadata

Issue #2765959 by davidwbarratt, Wim Leers, dawehner, borisson_, tstoeckler, tedbow, catch: Make 4xx REST responses cacheable by (Dynamic) Page Cache + comprehensive cacheability test coverage

Issue #2835845 by vaplas, Wim Leers, arshadcn, Berdir: EntityResource: Provide comprehensive test coverage for BlockContent entity