Add TryNext() to Sequencer.  Add CheckAndIncrement() to IClaimStrategy.  Introduce common super class for MultithreadClaimStrategies.

- Mirrors disruptor commit 925102dbdc8f124a664ad9bf2278eaff89acbaff
Match Java version 2.9

- Sync up to 110c76c57fb050889f9aedbdef88f26a5375c576