Possible (other) vendors

[MahdiBaghbani]

This is a list of some of the vendors that provide cloud storage and can benefit from OCM
I've decided to keep the big ones (eg: Dropbox, oneDrive) out.

In no particular order:

1. ProtonDrive
2. Sync.com
3. Filen
4. pCloud
5. NordLocker
6. SpiderOAK