GPU Calc: unit test cases for PRICE

AMLOEXT-63 BUG

Change-Id: I747817487fe118106a549674c6918dab544522ba
Signed-off-by: haochen <haochen@multicorewareinc.com>
Signed-off-by: I-Jui (Ray) Sung <ray@multicorewareinc.com>
GPU Calc: implement for PRICE

AMLOEXT-63 FIX

Change-Id: I97271c8cd05347e0c9179d509f8985d5f4c5f276
Signed-off-by: haochen <haochen@multicorewareinc.com>
Signed-off-by: I-Jui (Ray) Sung <ray@multicorewareinc.com>
GPU Calc: refactor op_financial.cxx to fix warning and bad indentation

Change-Id: I93db1e5d2b03904a3d7787cc16f642ebf4752d85