[FEATURE] Allow deactivation of PSR-15 middlewares

Similar to other places that use dependency configurations
via arrays, the middleware stack configuration now allows
disabling single middlewares by setting disabled=true.

Change-Id: I42c741062b5f6952577e164939593f0553b1ad31
Resolves: #83907
Related: #83906
Related: #83725
Releases: master
Reviewed-on: https://review.typo3.org/55725


Reviewed-by: Mathias Schreiber <mathias.schreiber@typo3.com>
Tested-by: Mathias Schreiber <mathias.schreiber@typo3.com>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Benjamin Franzke <bfr@qbus.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>