[FEATURE] A new eval option in TCA: email

Add a new eval option called 'email' to validate e-mail addresses.
If validation fails, a flash error message will be shown.

Resolves: #62147
Releases: master
Change-Id: Ie3885aa55a3fde95832fec163bc9347f06b4f54b
Reviewed-on: http://review.typo3.org/33251
Reviewed-by: Stefan Froemken <froemken@gmail.com>
Tested-by: Stefan Froemken <froemken@gmail.com>
Reviewed-by: Markus Klein <klein.t3@reelworx.at>
Tested-by: Markus Klein <klein.t3@reelworx.at>