SCHEMA-485. Add profiling pointcuts for HBase reads/writes

Added pointcuts for direct Kiji writes to the LogTimerAspect,
and making LoggingInfo public for use in KijiMR.
SCHEMA-515. Expose table and data request in HBaseKijiRowData.

This commit allows framework developers to access the table and data
request that are part of HBaseKijiRowData. In particular, this
facilitates framework developers making shallow copies of row data
with configuration changes.

Reviewed by: milo