Add initial integration tests for dynamic plugins

We need to provide a base for running integration tests using the dynamic plugins. The tests should initially

• Create a deployment and service to run the dynamic demo plugin
• Update the console operator config to enable the plugin
• Wait for the plugin to be available
• Test at least one extension point used by the plugin (such as adding items to the nav)
• Disable the plugin when done

Once the basic framework is in place, we can update the demo plugin and add new integration tests when we add new extension points.

https://github.com/openshift/console/tree/master/frontend/dynamic-demo-plugin

https://github.com/openshift/enhancements/blob/master/enhancements/console/dynamic-plugins.md

https://github.com/openshift/console/tree/master/frontend/packages/console-plugin-sdk