loongson/pypi: links for webtul

loongson/mirror webtul-1.7.tar.gz
loongson/mirror webtul-1.6.tar.gz
loongson/mirror webtul-1.5.tar.gz
loongson/mirror webtul-1.2.tar.gz
loongson/mirror webtul-0.37.tar.gz
loongson/mirror webtul-0.36.tar.gz