[BUGFIX] Apply default values in DataHandler functional tests

[BUGFIX] Apply default values in DataHandler functional tests

If MySQL is used in strict mode, setting up the functional
testing scenario requires proper field values for those
fields not having a default value defined in the schema.
For some field types, like BLOB or TEXT this is not possible
and thus has to be determined from the accordant TCA field
configurations.

Resolves: #69030
Releases: master
Change-Id: Ie915fdaca6c90440259e01896677a2d2395417f4
Reviewed-on: http://review.typo3.org/42598
Reviewed-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Tested-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Reviewed-by: Oliver Hader <oliver.hader@typo3.org>
Tested-by: Oliver Hader <oliver.hader@typo3.org>