loongson/pypi: links for wtforms-ext

loongson/mirror WTForms-Ext-0.5.tar.gz
loongson/mirror WTForms_Ext-0.5-py3-none-any.whl
loongson/mirror WTForms-Ext-0.4.tar.gz
loongson/mirror WTForms_Ext-0.4-py3-none-any.whl
loongson/mirror WTForms-Ext-0.2.tar.gz
loongson/mirror WTForms_Ext-0.2-py3-none-any.whl