Replace this repo with chfast/ethash

[chfast]

Replace this repo with https://github.com/chfast/ethash. This one can be renamed to ethash-legacy and should be archived.

Identify current users of this library.

• Python / pyethash ?
• ethereum-js ?

[manwapri]

ethash clone and compile procedure:

sudo yum install -y *gcc* sudo yum install -y *g++* sudo yum install -y *libboost* sudo yum install -y python sudo yum install -y python-virtualenv* sudo yum install -y cryptopp sudo yum install -y *opencl* wget https://raw.githubusercontent.com/Xilinx/XRT/master/src/runtime_src/tools/scripts/xrtdeps.sh sudo sh xrtdeps.sh sudo yum install -y cmake sudo yum install -y git git clone https://github.com/ethereum/ethash.git cd ethash/ git checkout v23.1 sed -i '16 s/^/pip install --upgrade pip\npip install nose\npip install pysha3\n/' ./test/python/test.sh sed -i '39 s/^/#include \n/' ./src/benchmark/benchmark.cpp make cd test/c/build make ethash make Benchmark_FULL ./src/benchmark/Benchmark_FULL