[SPIKE]: Define logging requirement

[fguimond]

As we are talking about improving our logging facilities lets compare logging packages available in Go our in other languages (such as Log4j) and see what features we would benefit for and potentially provide a ranking. Using that provide suggestions for implementation to see if we can use something off the shelf or implement the solution ourselves (or a little bit of both).

Some feature examples:

• Log level per package/file
• Change global log level
• Redirect specific loggers to specific files
• File rotation by size, day/time