[BUGFIX] Functional Test: force storage record to be caseSensitive "1"

In the context of Functional Tests, makes sure the
storage record in initialized with caseSensitive "1"
which prevents the on-the-fly storage creation
by the Framework as this setting is dependent on the OS.

Change-Id: I0baa8d7743968adc1106768be02671cc5a81628a
Releases: master, 6.2
Resolves: #59527
Reviewed-on: http://review.typo3.org/30693
Reviewed-on: http://review.typo3.org/32750
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>