Make create/delete accept list instance paths

Change-Id: I5991e1377ebc0edcfc3f8dbc60066a580314a51a
diff --git a/src/datastore_access.hpp b/src/datastore_access.hpp
index 7972523..2f75e51 100644
--- a/src/datastore_access.hpp
+++ b/src/datastore_access.hpp
@@ -24,6 +24,8 @@
     virtual void setLeaf(const std::string& path, leaf_data_ value) = 0;
     virtual void createPresenceContainer(const std::string& path) = 0;
     virtual void deletePresenceContainer(const std::string& path) = 0;
+    virtual void createListInstance(const std::string& path) = 0;
+    virtual void deleteListInstance(const std::string& path) = 0;
 
     virtual void commitChanges() = 0;
     virtual void discardChanges() = 0;