The table interface was modified to expose the arrow buffers. The
storage table has now been converted to use this interface with the same
fixes so that it exposes arrow buffers.
The influxql package has also been updated to use the `DoArrow` method
from the `flux.Table` interface.
WIP: saving state reword
feat(query/influxql): implement query.ResultIterator directly on response
review(influxql): add ResponseIterator that implement query.ResultIterator
review(influxql): update code is response to review