Revision 59f844777a89108561e364a4417842bcc3bd7ccb

EZEE-2081: Move NotificationBundle into Kernel (#2356)

* EZEE-2081: Move NotificationBundle into Kernel

* EZEE-2081: Notification Cache Handler

* EZEE-2081: Feature goes into 7.2

* fixup! EZEE-2081: Notification Cache Handler

* EZEE-2081: use alias fix

* EZEE-2081: Typehints and docblocks fix

* EZEE-2081: introduce API Notification value object

* EZEE-2081: Impl. cache layer for \eZ\Publish\SPI\Persistence\Notification\Handler

* EZEE-2081: Updated database schema

* fixup! EZEE-2081: Updated database schema

* EZEE-2081: Update Notifications fixes

* EZEE-2081: psr-2 fixes

* EZEE-2081: wrong return value from createNotification fix

* EZEE-2081: Create struct

* EZEE-2081: Impl. exception conversion layer for notifications gateway.

* EZEE-2081: psr2 fix

* EZEE-2081: Impl. unit tests for \eZ\Publish\Core\Persistence\Legacy\Notification\Mapper

* EZEE-2081: Slot Notification Service

* EZEE-2081: service definition is now public

* EZEE-2081: Delete signal added

* EZEE-2081: Notification service slot fix

* EZEE-2081: after review fixes - missing docblocks and some minor improv

* EZEE-2081: Impl. unit tests for SPI Cache, SignalSlot layer, Notification/Handler (partial)

* EZEE-2081: Impl. integration tests for NotificationService

* fixup! EZEE-2081: Impl. integration tests for NotificationService

* EZEE-2081: Impl. tests for \eZ\Publish\Core\Persistence\Legacy\Notification\Gateway\DoctrineDatabase

* EZEE-2081: Changed type of eznotification.data columny from bytea to text

* fixup! EZEE-2081: Changed type of eznotification.data columny from bytea to text

* fixup! EZEE-2081: Impl. unit tests for SPI Cache, SignalSlot layer, Notification/Handler (partial)

* EZEE-2081: CS