File list from directory: Get the list of image files that match a pattern

This object can get the list of image files that match a pattern.

It takes a regular expression that defines the pattern of image file names to be listed.

The object successively replaces a pattern variable with series of consecutive numbers to check it it is the name of an image file that exists until reaches a image file number that does not exist or the list already includes a number of files defined by a limit.