Add protobuffer exporter test
Protobuffer exporter bug fix

Fix issue:
-non available info during processing declaration
-non shutting down endpoint in case of service stop
fix scope in dependency for jax-ws exporter
remove empty lines
remove unused file
Refactor and fix sonar issues in FileBasedDiscoveries
Fix sonar issues in PushSubHubHub modules
Fix sonar issue in JSONRPCImporter
Add a FileBased config module in examples