Implement CartPole game with DQN

Example use

$ git clone https://www.github.com/xpharry/cartpole-dqn.git

$ cd cartpole-dqn

$ mkdir saved_networks

$ python cartpole-dqn.py

Reference:

150行代码实现DQN算法玩CartPole https://zhuanlan.zhihu.com/p/21477488?refer=intelligentunit