verbosity when used as a library

[ehuggett]

@dsnezhkov's comment (copied here in part)

What I would very much benefit from, since I am using sendclient.* calls is some level of message verbosity suppression. I know download progress and statistics on file size transferred are very valuable in case of an end client. However, using sendclient as a library, it would be ideal if I can just inspect the returns from

ffsend_link, fileId, delete_token = sendclient.upload.send_file( service, sfile, ignoreVersion=False, fileName=None) itself which looks like it is already possible.

Perhaps, verbosity level could be adjusted with something like a logging package, and/or a parameter to suppress printed feedback on request. Thank you.