Adds a category filter to the product list page in admin and also adds category column to product list.
You can filter order by selecting category name from autocomplete drop down category list.

Installation:
1. Open OpenCart Admin Panel
2. Extensions > Installer > Upload: download the file
3. See the "Success: You have modified extensions!" message
4. Extensions > Modifications > Refresh
5. Go to Dashboard > Developer Settings > Theme > Refresh
6. Go to Dashboard > Developer Settings > SASS > Refresh