Collect the settings data from all ROXAS (AI) settings files.
Details
For roxas_version = "roxas", image EXIF metadata is collected from the
image files via collect_image_info() and joined to the settings data.
files_images is required in this case and must be in the same order as
files_settings.
For roxas_version = "roxas_ai", image metadata is already embedded in
the settings JSON files; files_images is not needed.