Added testcase for context logger and minor refactorings
Added EJB context logging interceptor.
Moves tracee jaxws context logger artifacts into its own tracee-contextlogger-jaxws module (#14).
Adds test for HttpJsonHeaderTransport (#5).
#5: Adds unit tests for TraceeBackendProvider implementations.
#5: Adds unit tests for ThreadLocalTraceeBackendProvider.
#16 naming fixes in context-logger README.md [skip ci]
#5: create real unit tests for HttpConnector
#16: minor typo fix in parent-README.md [skip ci]