Feature - Add Integration with Round Sync

[fallsdevil]

Round Sync is an Android version of RCLONE, I would like Files material to access the existing remote storage in Round Sync as it happens on Google Files, and in the native "file" of Androids that recognizes these storage. I think it would be poor and more intuitive, I don't know if there is any option to authenticate the login of some cloud account and access it on Files material, but I tried to use some existing options and couldn't... I researched before opening this suggestion and I believe this other about the rclone is something similar.