[Output Only] The status of the snapshot. This can be CREATING,
DELETING, FAILED, READY, or UPLOADING.
Values:
UNDEFINED_STATUS (0):
A value indicating that the enum field is not
set.
CREATING (455564985):
Snapshot creation is in progress.
DELETING (528602024):
Snapshot is currently being deleted.
FAILED (455706685):
Snapshot creation failed.
READY (77848963):
Snapshot has been created successfully.
UPLOADING (267603489):
Snapshot is being uploaded.
