Clipboard files transfer hashing, deduplication and storage location

[obilodeau]

Clipboard files and folders are treated differently than the filesystem behavior introduced in v1.1.0. We should try to align that.

Hashing

Clipboard file transfers should be hashed just like mapped drive file transfers. The completed file transfers should be logged in the same format as for mapped drives.

Deduplication and storage

Store the files in files/ using hashed format. We could store the symlink to the files under the filesystems/ hierarchy under a special device called clipboard.