winfuture: add futcom module

'futcom' contains some common functions to do Futures tradings.

Signed-off-by: Zhengwang Ruan <ruan.zhengwang@gmail.com>
dataMgr:dataParser: use futcode instead of table names in CML

Change to use futcode instead of table names in commandline,
which is better for experience to use wfa.

Signed-off-by: Zhengwang Ruan <ruan.zhengwang@gmail.com>
regression: use futcode instead of table names in CML

1) Change to use futcode instead of table names in commandline,
which is better for experience to use wfa.
2) Update assistant() mothod to make sure it works using futcode
passed from regression module.

Signed-off-by: Zhengwang Ruan <ruan.zhengwang@gmail.com>