Provide multiple Camel config files per deployment

[trohovsky]

Currently only one Camel config file (META-INF/jboss-camel-context.xml) can be contained in a deployment for EAP. It would be good to follow the convention form OSGi world where one bundle can contain several Camel config files. Let's say Camel configs could be stored in META-INF/jboss/ or better in the same location as Camel Spring config files in OSGi - META-INF/spring/ (easier migration from OSGi to EAP).

Some motivation for multiple Camel config files:

• To enable development of Camel configs separately by different programmers/teams.
• To make integration tests of Camel on EAP easier - minimalistic test deployments containing only the appropriate Camel config file could be created and deployed on EAP with using ShrinkWrap/Arquillian.
• I belive that other use-cases/reasons for doing so exists because this functionality is already provided in OSGi environment. You can name them.

Tracked by ENTESB-2396