Created by: luotao1

addRowScale is used in four following layers:

InterpolationLayer.cpp:93:  outV->addRowScale(0, *inV1, *weightV);
InterpolationLayer.cpp:94:  outV->addRowScale(0, *inV2, *weightLast_);
InterpolationLayer.cpp:121:    inG1->addRowScale(0, *outG, *weightV);
InterpolationLayer.cpp:126:    inG2->addRowScale(0, *outG, *weightLast_);
RowL2NormLayer.cpp:94:    inG->addRowScale(0, *outG, *l2NormReciprocal_);
ScalingLayer.cpp:80:    outV->addRowScale(0, *inV1, *weightV);
ScalingLayer.cpp:101:      inG1->addRowScale(0, *outG, *weightV);
SumToOneNormLayer.cpp:116:    inG->addRowScale(0, *outG, *reciprocalRowSum_);