camel-jbang: Add property based Kubernetes trait configuration

The Camel JBang Kubernetes plugin provides traits to easily configure the Kubernetes manifest (kubernetes.yml) that is used to build and deploy the application on Kubernetes.

The traits are configured via command line options (e.g. --trait container.port=8088)

We should also support trait configuration via profile properties (e.g. application.properties) that get loaded during the export command.

Properties may use a common prefix like camel.jbang.trait.* (e.g. camel.jbang.trait.container.port=8088)