fastGPT: Faster than PyTorch in 300 lines of Fortran

[certik]

I created a GSoC idea for fastGPT here:

https://github.com/fortran-lang/webpage/wiki/GSoC-2023-Project-ideas#improving-fastgpt-making-it-faster-easier-to-use-and-more-general

If you are a student and interested, please let us know!