Ref #548: Allow to create a cxfrs endpoint in blueprint

[essobedo]

fixes #548

Motivation

For now, it is not possible to create a cxfrs endpoint using blueprint as we end up with a ClassNotFoundException

Modifications:

• Add an integration test that reproduces the issue
• Add a class for removal corresponding to what camel-cxf-rest expects until it is fixed in Camel
• Move all blueprint-related classes of CXF into camel-cxf-blueprint to prevent split packages
• Add all blueprint-related schemas of CXF to camel-cxf-blueprint
• Add the maven property camel.karaf.test.additional.imports to add import packages to the test bundle
• Add the maven property camel.karaf.test.fragment.host to set the fragment host of the test bundle

Result

By adding the import package org.apache.camel.component.cxf.jaxrs.blueprint explicitly to the bundle to test, it is now possible to create a cxfrs endpoint using blueprint.