With the new composer installers versions,
the core package itself (in fact any composer package)
can add scripts to be run on composer build time.

Use this API to add scripts to TYPO3,
that will create the entry scripts for frontend,
backend and install tool

We do this in a way, that also works if these system extensions
are installed individually.

This also has the benefit, that we can adapt the core
with doing more things during composer build time
(e.g. maybe publishing assets) in the future,
or change the entry scripts to different locations,
without touching the plugin any more.

Resolves: #81981
Releases: master
Change-Id: I3982bd5e73a14cdd54e83d0a7b3a1c93f2191efd
Reviewed-on: https://review.typo3.org/53602


Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Benni Mack <benni@typo3.org>
Tested-by: Benni Mack <benni@typo3.org>