Add TimeUnit to streaming query

[japdt]

It is currently only possible to specify timeUnit as follows:
query(final Query query, TimeUnit timeUnit)

Please could you add timeUnit to all other types of queries? In particular, I would love to see:
query(Query query, int chunkSize, TimeUnit timeUnit, Consumer<QueryResult> consumer)

Thanks!

[hakandilek]

We can combine it with #498 and introduce two additional methods:

query(Query query, TimeUnit timeUnit, int chunkSize, Consumer<QueryResult> consumer)
and
query(Query query, TimeUnit timeUnit, int chunkSize, Consumer<QueryResult> resultConsumer, Consumer<Throwable> errorConsumer)

• TimeUnit timeUnit as 2nd parameter, to keep it consistent with the other query methods

[weiss19ja]

I made a PR #509 for this issues