[TASK] Move PhpInfo utility to a ViewHelper

Resolves: #57124
Related: #55116
Releases: 6.2
Change-Id: I26ce6a340c06f6dfccf255b9b6c9424d9bd70efb
Reviewed-on: https://review.typo3.org/28583
Reviewed-by: Ernesto Baschny
Tested-by: Ernesto Baschny
Reviewed-by: Helmut Hummel
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn