[TASK] Add common image ratio 3:2 to cropVariants

In addition to 16:9, 4:3, 1:1 and free another common
image ratio "3:2" (DSLR default format) is introduced.

Resolves: #79677
Releases: master
Change-Id: Iac4aff754fe07216a6b956a47ac535eadacab553
Reviewed-on: https://review.typo3.org/51571


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Alexander Grein <alexander.grein@gmail.com>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Harry Glatz <glatz@analog.de>
Tested-by: Harry Glatz <glatz@analog.de>
Reviewed-by: Andreas Fernandez <typo3@scripting-base.de>
Tested-by: Andreas Fernandez <typo3@scripting-base.de>