[TASK] Display content_date in sys_file_metadata TCA

Display content_creation_date and content_modification_date of images,
audio files and videos in the TCA of sys_file_metadata records.

Resolves: #76267
Releases: master, 7.6
Change-Id: I77dd1b35f5ba7e1f4dbd975ad1ad339e8a0ada6e
Reviewed-on: https://review.typo3.org/48243


Reviewed-by: Markus Klein <markus.klein@typo3.org>
Tested-by: Markus Klein <markus.klein@typo3.org>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>

typo3/sysext/filemetadata/Configuration/TCA/Overrides/sys_file_metadata.php

@@ -41,6 +41,7 @@ $tca = array(
 					creator, creator_tool, publisher, source, copyright, language,
 					--palette--;LLL:EXT:filemetadata/Resources/Private/Language/locallang_tca.xlf:palette.geo_location;40,
 					--palette--;LLL:EXT:filemetadata/Resources/Private/Language/locallang_tca.xlf:palette.gps;30,
+					--palette--;LLL:EXT:filemetadata/Resources/Private/Language/locallang_tca.xlf:palette.content_date;60,
 				--div--;LLL:EXT:filemetadata/Resources/Private/Language/locallang_tca.xlf:tabs.camera,
 					color_space,
 					--palette--;LLL:EXT:filemetadata/Resources/Private/Language/locallang_tca.xlf:palette.metrics;50
@@ -55,6 +56,7 @@ $tca = array(
 					fe_groups,
 				--div--;LLL:EXT:filemetadata/Resources/Private/Language/locallang_tca.xlf:tabs.metadata,
 					creator, creator_tool, publisher, source, copyright, language,
+					--palette--;LLL:EXT:filemetadata/Resources/Private/Language/locallang_tca.xlf:palette.content_date;60,
 				--div--;LLL:EXT:filemetadata/Resources/Private/Language/locallang_tca.xlf:tabs.audio,
 				    duration
 			',
@@ -68,6 +70,7 @@ $tca = array(
 					fe_groups,
 				--div--;LLL:EXT:filemetadata/Resources/Private/Language/locallang_tca.xlf:tabs.metadata,
 					creator, creator_tool, publisher, source, copyright, language,
+					--palette--;LLL:EXT:filemetadata/Resources/Private/Language/locallang_tca.xlf:palette.content_date;60,
 				--div--;LLL:EXT:filemetadata/Resources/Private/Language/locallang_tca.xlf:tabs.video,
 					duration
 			',