[tools] Add '--create_table_replication_factor' flag for 'kudu table copy'

Now it's possible to specify the replication factor for the
destination table when copying a table.

Some usage scenarios, copy a table with RF=3 from a cluster with
multiple tservers to a cluster with only one tserver, we can set
--create_table_replication_factor=1.

Change-Id: I9a4eebdcf85b5ec3666e023194b8c06d66b0a683
Reviewed-on: http://gerrit.cloudera.org:8080/18446
Tested-by: Kudu Jenkins
Reviewed-by: Alexey Serbin <alexey@apache.org>
3 files changed