HPCC-10460 Streamed dataset support for Java

Work in progress - added record results, but not yet extended to datasets.

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
HPCC-10460 Streamed dataset support for Java

Work in progress - (mostly) added record parameters. SET fields are
tricky.

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
HPCC-10460 Streamed dataset support for Java

Work in progress - record parameters complete, including sets

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
HPCC-10460 Streamed dataset support for Java

Streamed datasets may now be passed, matching either array or iterator
parameters at the Java end.

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
HPCC-0000 WIP

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>