Use java.time.Duration for atMostEvery in LoggingApi.

Presently, `atMostEvery` only supports `int` and `java.util.concurrent.TimeUnit`. However, the parameters become inconvenient to use for `java.time.Duration`. Additionally, when using `java.time.Duration#toNanos` and `TimeUnit#NANOSECONDS, the field gets truncated to an `int`. This causes the implementer of the duration field to explicitly field depth to avoid overflow, which can become awkward.

I would like `atMostEvery` to support `java.time.Duration`, rather than it's present args. This would make more sense on an usability standpoint of this API.