The operator class has gotten fairly large, this is a first pass in
refactoring operator.py into a submodule instead, with multiple operator
instances which handle different types of objects.
- The main k8s interface has been split into K8sOpApi which extends K8sApi
and is shared across all operators.
- Each operator extends BaseOperator which also has an instance of K8sOpApi
- The CrawlOperator is still the bulk of the functionality, but will likely be further refactored
to support QA jobs
---------
Co-authored-by: Tessa Walsh <tessa@bitarchivist.net>