Migrate from Camel JBang to Camel Launcher

[djelinek]

https://camel.apache.org/manual/camel-jbang-launcher.html

because Camel JBang practically won't be supported / tested / documented anymore in 4.18

[lordrip]

Open questions:

• How are we gonna download the launcher?
• What about offline (air-gapped) environment?
• Should we consider distribution at this stage? (DVDs)
• Should we sync with Kaoto catalog?
• If we need to sync, what happens when there's an error in the launcher?
• Launcher version vs Apache Camel version, how this would influence the components catalog?
• How to handle breaking changes?
• Is there a need to switch the launcher during runtime? (Red Hat versions and Community versions)