Provide Hawtio Online as Web console dynamic plugin for OpenShift

[tadayosi]

Now OpenShift provides the dynamic plugins feature for users to extend its web console:
https://docs.openshift.com/container-platform/4.12/web_console/dynamic-plug-in/dynamic-plug-in.html

We can consider providing Hawtio Online as a dynamic plugin for the OpenShift Web console instead of providing it as an independent deployment for more integrated user experiences with the OpenShift Web console.

[phantomjinx]

For reference:

• https://github.com/gashcrumb/console-plugin-example
• https://github.com/openshift/console/tree/master/frontend/packages/console-dynamic-plugin-sdk#openshift-console-versions-vs-sdk-versions