Add Priority Class resource editor

[ChristopherFry]

Feature Suggestion

Add a first-class Priority Class resource editor.

Context

Currently, the Config as Data UI has first-class resource editors for many resources, including for Deployments, Stateful Sets, Services, Service Accounts, Ingress, Roles, and Role Bindings, however, a first-class resource editor has yet to be created for Network Policies. Adding first-class resource editors allow users to add and update Kubernetes resources with a UI versus using YAML.