SEBA-405 Cleanup synchronizer imports of model_accessor to globals;
Move mock modelaccessor to /tmp;
Easier mock modelaccessor configuration

Change-Id: I67a17b9a72ea69f61d92206f1b520a11c2f18d80
diff --git a/lib/xos-synchronizer/xossynchronizer/event_steps/eventstep.py b/lib/xos-synchronizer/xossynchronizer/event_steps/eventstep.py
index 9596248..84ea74b 100644
--- a/lib/xos-synchronizer/xossynchronizer/event_steps/eventstep.py
+++ b/lib/xos-synchronizer/xossynchronizer/event_steps/eventstep.py
@@ -25,12 +25,15 @@
     topics = []
     pattern = None
 
-    def __init__(self, log, **kwargs):
+    def __init__(self, model_accessor, log, **kwargs):
         """
         Initialize a pull step. Override this function to include any initialization. Make sure to call the original
         __init__() from your method.
         """
 
+        # self.model_accessor can be used to create and query models
+        self.model_accessor = model_accessor
+
         # self.log can be used to emit logging messages.
         self.log = log