graphics/p5-Image-ExifTool-devel: Update to 12.14

Update of the development version from 10.66 (Nov. 14, 2017)
to recent 12.14.

Changelog: https://exiftool.org/history.html

PR: 252047
Submitted by: takefu@airport.fm
Approved by: arrowd (mentor), + maintainer timout (> 2 weeks)
Differential Revision: https://reviews.freebsd.org/D28063