[Feature]: rclone remote configuration file support

[SystemAdmin12345]

Feature Description

I was considering using it, but it only supports a handful of providers. Adding rclone support to this app would give it infinite* more providers to choose from, making the app much more viable. Basically, it would connect to the rclone configuration, like you could put MegaDrive:path/to/desired/directory and even make it limited to a directory. It will be labeled like "rclone remote (Advanced)"

What version of Celeste are you using?

0.8.3