[feature request] support paddle

[MLgeek7325]

In China, Baidu's open-sourced ML package PaddlePaddle (19.7k+ stars) is very widely used (China’s No.1 and world’s Top 3). Meanwhile, Gurobi also has many users in China. To maximize the synergistic benefits of gurobi and paddle, I want to build Paddle's based predictor for gurobi-ml. The advantage of using paddle is that it can improve the open source ecosystem of gurobi-ml and attract more. @pobonomo would you be willing to accept a PR?

[pobonomo]

Hi, I am not very familiar with Paddle so I wouldn't be able to help much. But in principle there's no objection. Note that it would need to come with some reasonable testing and also preferably at least a minimal example.