sha256 running in a compute shader with wgpu
sha256 code is from https://github.com/MarcoCiaramella/sha256-gpu
running the example should produce something similar to the following output:
Total messages to hash: 2000000
Rust sequential sha256 took: 653.687875ms
Rust parallel sha256 took: 212.407625ms
Dispatching 62500 workgroups with 32 threads each
GPU Compute Shader: 15.707541ms