[CLEANUP] Add missing rst changelog docs

Add the rst files which have been added meanwhile in the 8.7 branch.

Resolves: #83130
Releases: master, 8.7
Change-Id: I9b552fcdda64a5a1a9a8c1d1e06d20d0ed43cad0
Reviewed-on: https://review.typo3.org/54816


Reviewed-by: Sebastian Hofer <sebastian.hofer@marit.ag>
Reviewed-by: Anja Leichsenring <anja.leichsenring@typo3.com>
Tested-by: Anja Leichsenring <anja.leichsenring@typo3.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Henning Liebe <h.liebe@neusta.de>
Tested-by: Henning Liebe <h.liebe@neusta.de>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>