root/pypi: links for meshoptimizer

root/pypi meshoptimizer-0.2.20a5.tar.gz
root/pypi meshoptimizer-0.2.20a4.tar.gz
root/pypi meshoptimizer-0.2.20a3.tar.gz
root/pypi meshoptimizer-0.2.20a2.tar.gz
root/pypi meshoptimizer-0.2.20a1.tar.gz