Add ability to download extension lists from multiple sources, as occasionally there are sources that Keiyoushi does not have in their list.
Additionally support grabbing list from filesystem, in case the user has their own curated list or has downloaded a list that is no longer available.
Add ability to download extension lists from multiple sources, as occasionally there are sources that Keiyoushi does not have in their list.
Additionally support grabbing list from filesystem, in case the user has their own curated list or has downloaded a list that is no longer available.