NEW FEATURE Wildcard on gallery paths

This new feature enables the use of wildcard (*) on image paths on the
media_gallery field.

By enabling this feature, it simplifies image paths in media_gallery
column,
from something like this
(/demo1/image1.jpg;/demo1/image2.jpg;/demo1/image3.jpg)
to this (/demo1/*.jpg)

Added option to turn this feature on and off.

Tested in Linux server, need testing in windows