Fix backward compatibility in arquillian-osgi

This commit splits arquillian deployment into 3 separate bundles:

• Arquillian bundle - management package
• deployment - contains ONLY classes added by @Deployment method
• fragment of Arquillian-bundle - contains test classes

This split totally destroy backward compatibility and breaks all tests which are dependent on some class from deployment archive. Moreover Deployments which requires import packages such as `org.junit` can't be deployed.