Provide Hawtio minimum console war

[tadayosi]

3rd party applications including Apache Artemis might want to use Hawtio as their management console but only with a minimum set of builtin plugins such as JMX, RBAC, and the authentication plugins. There are cases that they just don't need Camel, Spring Boot, Quartz, etc. plugins.

Instead of demanding them to set up their own version of console assembly and war subprojects in their own repositories, it might be profitable for them to provide an official minimum console war distribution along with the existing hawtio-war.war and hawtio-default.war.

[tadayosi]

This approach still has a limitation: It is that while the Camel plugin can be disabled, its JS is still needed to be bundled in the hawtio-minimal.war. That means the minimal console still needs to download 13.6MB of JS it doesn't use at all.

It's the limitation of Webpack Module Federation we are using for the plugin mechanism.
https://medium.com/@marvusm.mmi/webpack-module-federation-think-twice-before-sharing-a-dependency-18b3b0e352cb

To resolve it, we'd need to split @hawtio/react into the core essential part and the optional plugins (@hawtio/plugins). For records, we tried that earlier but it was left incomplete: hawtio/hawtio-next#229