综合Attentional FM 和 Neural FM，搭建ANFM模型

参考如下：
Jun Xiao, Hao Ye, Xiangnan He, Hanwang Zhang, Fei Wu and Tat-Seng Chua (2017).
Attentional Factorization Machines: Learning the Weight of Feature Interactions via Attention Networks
IJCAI, Melbourne, Australia, August 19-25, 2017.
Xiangnan He and Tat-Seng Chua (2017).
Neural Factorization Machines for Sparse Predictive Analytics.
In Proceedings of SIGIR '17, Shinjuku, Tokyo, Japan, August 07-11, 2017.

AFM_Model.py：AFM模型
AFM_NFM_Model.py：ANFM模型

数据链接如下为：https://github.com/cnfsll/Neural-Factorization-Machine/tree/master/data