Publicly Verifiable & Private Collaborative ML Model Training

https://github.com/orgs/noir-lang/discussions/6317

Benchmarks (WIP)

For iris dataset. Check benchmarking folder to run benchmarks and tests.

epochs,samples_train,acir_opcodes,circuit_size
5,10,156595,233384
5,20,260650,387935
5,30,364726,542162
5,40,468576,696830
10,10,339976,505226
10,20,573556,854462
10,30,807142,1203194
10,40,1040292,1552532
15,10,523789,777749
15,20,886834,1321910
15,30,1249870,1865387
15,40,1612260,2409635