loongson/pypi: links for bearcart

loongson/mirror bearcart-0.1.3.tar.gz
loongson/mirror bearcart-0.1.2.tar.gz
loongson/mirror bearcart-0.1.1.tar.gz
loongson/mirror bearcart-0.1.0.tar.gz
loongson/mirror bearcart-0.1.0.macosx-10.5-x86_64.exe