[FEATURE] Show table and field names in ext:lowlevel

If the configuration `['BE']['debug']` is enabled and the current user is an
administrator, the name of a DB table or DB field is appended to the select
options in the "Full Search" module of ext:lowlevel.

Resolves: #92522
Releases: master
Change-Id: I1da79ac49f7d9b7c4890d3ebc0141f48b89ff00d
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/66089


Tested-by: Josef Glatz <josefglatz@gmail.com>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Alexander Schnitzler <git@alexanderschnitzler.de>
Tested-by: Daniel Goerz <daniel.goerz@posteo.de>
Reviewed-by: Josef Glatz <josefglatz@gmail.com>
Reviewed-by: Alexander Schnitzler <git@alexanderschnitzler.de>
Reviewed-by: Daniel Goerz <daniel.goerz@posteo.de>