numpy, scipy and cython version

[themis0888]

Thanks for your great work and for sharing the code. This repo is really helping so much for many other project.

By the way, since this repo was published a long time ago, some libraries, such as scipy and numpy deleted some attributes or functions, so this might not work with recent version of libraries.

If you have problems, please try changing the np.int_t to np.int64_t in FaceboxV2/utils/nms/cpu_nms.pyx and change the scipy.integrate.sims to scipy.integrate.simson.

In my case, the Cython also caused some problems but I don't remember how did I fix that.

Thank you!