FastCamelContext - Move more to build time phase

Lets look at if we can move more to doBuild phase on AbstractCamelContext in camel-core, and also at CamelContextRecorder.createContext method where it builds CamelContext for camel-quarkus.

We have potential to do more at build time, discover more from classpath etc, and avoid doing that in doInit phase of CamelContext which is executed at runtime for both JVM and native mode. So we need to do as much we can do in doBuild phase.

Start by reading doBuild and doInit in AbstractCamelContext, then inspect CamelContextRecorder.createContext in camel-quarkus. Identify which classpath discovery and context setup currently happen during runtime initialization and determine what can safely move to build time for JVM and native modes. Done means a documented, tested reduction in doInit work.

Written by the indexing model from the issue text.