[pygenomeworks] logger chatter.

[iiSeymour]

When creating a CudaPoaBatch object a default logger is initialized and outputs to stderr.

>>> from genomeworks.cudapoa import CudaPoaBatch
>>> CudaPoaBatch(1000, 1000, 3724032)
GenomeWorks logger not initialized yet. Initializing default logger now.
Initialized GenomeWorks logger with log level ERROR

Can the logger be initialized from Python with a stream to avoid this output?

[iiSeymour]

cudapoa also outputs to stdout which can go unseen and corrupt output formats (fastx, sam, ect).

[vellamike]

@ohadmo @EpiSlim can we add an option to disable logging completely?