Option to add prefix to all logs

[singpolyma]

For a child logger, it can be useful to have a specified prefix string added to all logs.

[tilfin]

Can you provide some examples?

[singpolyma]

The idea would be to allow something like:

child = logger.child
child.prefix = "LIBRARY66"

child.info("hai") # LIBRARY66 hai

[tilfin]

You can do that by applying your custom formatter.