move old xoslib methods out of the way
diff --git a/xos/core/xoslib/methods/cordsubscriber.py b/xos/core/xoslib/methods/cordsubscriber._unused
similarity index 100%
rename from xos/core/xoslib/methods/cordsubscriber.py
rename to xos/core/xoslib/methods/cordsubscriber._unused
diff --git a/xos/core/xoslib/methods/volttenant.py b/xos/core/xoslib/methods/volttenant._unused
similarity index 100%
rename from xos/core/xoslib/methods/volttenant.py
rename to xos/core/xoslib/methods/volttenant._unused
diff --git a/xos/core/xoslib/methods/vtn.py b/xos/core/xoslib/methods/vtn._unused
similarity index 100%
rename from xos/core/xoslib/methods/vtn.py
rename to xos/core/xoslib/methods/vtn._unused