[FEATURE] Migrate various Signal Slots to PSR-14 events

This change migrates existing Extbase Signal Slots in EXT:core
to the new PSR-14 events, which allow to define a proper API
for each event fired.

The following new Events are in place:
- TYPO3\CMS\Core\Imaging\Event\ModifyIconForResourcePropertiesEvent
- TYPO3\CMS\Core\DataHandling\Event\IsTableExcludedFromReferenceIndexEvent
- TYPO3\CMS\Core\DataHandling\Event\AppendLinkHandlerElementsEvent
- TYPO3\CMS\Core\Configuration\Event\AfterTcaCompilationEvent
- TYPO3\CMS\Core\Database\Event\AlterTableDefinitionStatementsEvent
- TYPO3\CMS\Core\Tree\Event\ModifyTreeDataEvent

The following signals are now deprecated:
- TYPO3\CMS\Core\Imaging\IconFactory::buildIconForResourceSignal
- TYPO3\CMS\Core\Database\SoftReferenceIndex::setTypoLinkPartsElement
- TYPO3\CMS\Core\Database\ReferenceIndex::shouldExcludeTableFromReferenceIndex
- TYPO3\CMS\Core\Utility\ExtensionManagementUtility::tcaIsBeingBuilt
- TYPO3\CMS\Install\Service\SqlExpectedSchemaService::tablesDefinitionIsBeingBuilt
- TYPO3\CMS\Core\Tree\TableConfiguration\DatabaseTreeDataProvider::PostProcessTreeData

Resolves: #89733
Releases: master
Change-Id: I0747c1de3b77a6be2870d87a054522a7df2fdb18
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/62331


Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Susanne Moog <look@susi.dev>
Tested-by: Daniel Goerz <daniel.goerz@posteo.de>
Reviewed-by: Susanne Moog <look@susi.dev>
Reviewed-by: Daniel Goerz <daniel.goerz@posteo.de>