Auto switch http download source when package is missing

[Catizard]

Waiting wriggle changes the endpoint behavior

There're two cases that we know a package is missing from server:

• Building the actual download link. Konmai requires us to query a meta data endpoint first to know the actual download link. If it returns 404 or a json string with err message then we know this package is not present on konmai.
• Downloading file from the actual download link and server responds 404 back. This is currently happening when using wriggle as the download source because it's meta query endpoint doesn't return the actual download link back. The link is constructed by using a specific pattern currently.

Handle the second case is kinda hard because it's an async task. So currently this pr is waiting wriggle to change the endpoint behavior to match what konmai does.