BATCH-2062: Added ChunkProcessor implementations to support JSR-352's chunking pattern
* Added the JsrChunkProvider implementation - a no-op ChunkProvider implementation to be used by the ChunkOrientedTasklet
* Added the JsrChunkProcessor - A simple implementation of a ChunkProcessor that handles the JSR-352 chunking pattern (read and process loop with a single write per chunk).
* Added the JsrFaultTolerantChunkProcessor - A ChunkProcessor that implements chunking the way JSR-352 requires as well as adding skip/retry functionality.
* Added builders to support the above functionality.
BATCH-2062: Updated from code review