Issue #1993144: by josh-waihi, reubenavery, wiifm, grota, alex-bukach,...

Issue #1993144: by josh-waihi, reubenavery, wiifm, grota, alex-bukach, bastlynn: Moved cropping info into a table

Added a new table for storing image cro information, rather than using
variables table.

This update introduce a new table imagefield_crop, with update hook to
move past crop image info into imagefield_crop table