Add deduping to probe.gl logger

[ilijapuaca]

Per #112, we should add a way to avoid spamming the log with messages being logged within the render loop, just like the JS counterpart does. From @ibgreen:

Just a set recording which strings have already been logged. Could also be a map<string, timestamp> and only log if say 1 second has passed.
I believe the log function has an option.once. This is set by default on log.warn and log.error (the api is slightly different).