Support feat. imageswith spaces in filname

Hi,
Really love the script.
I found a potential bug, it doesn’t support featured images that have a space or a %20 in their URL.
In order to allow this I added to line 472 of class-woocsv-product.php

$url = str_replace(array('%20',' '),'-',$url);

Now all images are imported. I know it’s a hack but it’s easier than messing with the regex (for me)

https://www.ads-software.com/plugins/woocommerce-csvimport/