As an ONAP operator, I want to have centralized logging for each of onap component, so that I can emit standardized, machine-readable logging output.

See: https://wiki.onap.org/display/DW/LOG+M1+Release+Planning

Acceptance Criteria

• ONAP components logs are centralized into a common repository
• ONAP components logs are searchable
• ONAP Transactions are logged and tracable across all ONAP components
• ONAP components logs are standardized in order to facilitate the search
• ONAP components logs are machine readable.