Logging: Allow node owner to decide where to log

[alexcos20]

We should allow node-owner to decide where to see/keep the logs.

Proposal: Refactor logging module such:

• have env LOG_LEVEL decide what logs are activated (no matter if NODE_ENV is production or development). If LOG_LEVEL is not defined, then if NODE_ENV='production' -> LOG_LEVEL=info, else LOG_LEVEL=DEBUG
• if env LOG_CONSOLE is True, then all logs should be displayed on the console
• if env LOG_FILES is True, then all logs should be save in log fines
• if env LOG_DB is True and we have noSQL db, then all logs should be saved in noSQL db

If none of LOG_CONSOLE, LOG_FILES, LOG_DB are set the we default to console

Default for casual user will be set in the yaml file (will not be set in code) would be LOG_DB: true and LOG_LEVEL: ERROR

[paulo-ocean]

closed on #553