Move common storage, plot and statistic code to cephlib
diff --git a/wally/suits/job.py b/wally/suits/job.py
index 5cb27b5..5f3c764 100644
--- a/wally/suits/job.py
+++ b/wally/suits/job.py
@@ -2,7 +2,7 @@
 from typing import Dict, Any, Tuple, cast, Union
 from collections import OrderedDict
 
-from ..common_types import Storable
+from cephlib.storage import Storable
 
 
 class JobParams(metaclass=abc.ABCMeta):