#5 Tokens shouldn't be logged

[Stevo Slavic]

If logger is passed to ReadApi or WriteApi constructor, for most if not for every call all parameters will be logged at info level, including token parameter. IMO this is a security problem, and if api user would really want to have token in log, that logging could be done before/after calling ReadApi or WriteApi. One solution would be to mask token argument for log output.

Affected version: 2.3