In order to deliver more information
in custom installations for use with composer,
the namespaces for using the composer
autoloader are added to each composer.json
of all system extensions.

Releases: master, 6.2
Resolves: #64356
Change-Id: Ic0fa9e0969a48f68cce8ceeb77dbef3b75e6e6f1
Reviewed-on: http://review.typo3.org/36076


Reviewed-by: Helmut Hummel <helmut.hummel@typo3.org>
Tested-by: Helmut Hummel <helmut.hummel@typo3.org>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>