Adds the RestoreOperation to the /internal/operations pkg.
restoreOp.Run() is a no-op at this time since data layer
packages are not prepared to hook up e2e.
* add backup to operations
Extend the operations set with a backupOperation. New backup
operations are created through an existing repository and, once
created, can be Run synchronously.
Integration tests have a skeleton, but the meat of them is on hold
while dependencies undergo implementation.
* remove operation progress
