Log Message:
gexiv2: update to 0.14.1.

gexiv2 0.14.1 - 5 May 2023 (stable)

 * Clean-up python support
 * Drop python2 support
 * Add option for building tests
 * Only run python tests when python is enabled
 * Fix get_gps_info() return data with unset altitude
 * Fix generate_xmp_packet() ignoring its parameters
 * Fix gexiv2-tool to call initialize()