Disable logger output

[DevulderJeanPaul]

Hi,
it's possible have a flag for disable logger.debug call
When itest autcomplete
the method: -> "override open func complete(_ sender: Any?) "
logger.debug("async completion: (sessionId)")
show too many logs.
Thanks!

[krzyzanowskim]

no problem with that, wanna do quick PR? I can do it later.