Release v19.72.0

Added

• Analyzer CHR0065 warns when a read model has a method that is plainly meant to fold an event into it but will never be discovered as a self-reducer. This catches a fold whose name is not Reduce (for example Reducer or reduce) and a fold that is not static. Previously such a read model never folded and nothing said why. The diagnostic names the reason and shows the expected Reduce signature, and also recognizes historical event generations and event types that inherit [EventType]. See CHR0065. (#4962)