cleaning up initialize()

- standardisded on a single context argument
- removed Device.init() no longer necessary as initilize now
  automatically gets propagated up the hierarchy. Renamed the existing
  use of it to "initilize".
- related pylint cleanup.

wlauto/core/workload.py

@@ -61,7 +61,7 @@ class Workload(Extension):
         """
         pass
 
-    def initialize(self, context):  # pylint: disable=arguments-differ
+    def initialize(self, context):
         """
         This method should be used to perform once-per-run initialization of a workload instance, i.e.,
         unlike ``setup()`` it will not be invoked on each iteration.
@@ -96,7 +96,7 @@ class Workload(Extension):
         """ Perform any final clean up for the Workload. """
         pass
 
-    def finalize(self, context):  # pylint: disable=arguments-differ
+    def finalize(self, context):
         pass
 
     def __str__(self):