[ADD]增加销货订单可以生成退货单的逻辑
[ADD]增加销货订单可以生成退货单的逻辑

Judystudy/gooderp_addons,gilbert-yuan/gooderp_addons,luoguizhou/gooderp_addons,floraXiao/gooderp_addons,gilbert-yuan/gooderp_addons,OpenERPJeff/gooderp_addons,Judystudy/gooderp_addons,luoguizhou/gooderp_addons,OpenERPJeff/gooderp_addons,GoodERPJeff/gooderp_addons,OpenERPJeff/gooderp_addons,floraXiao/gooderp_addons,gilbert-yuan/gooderp_addons,Judystudy/gooderp_addons,GoodERPJeff/gooderp_addons,floraXiao/gooderp_addons,GoodERPJeff/gooderp_addons,gilbert-yuan/gooderp_addons,luoguizhou/gooderp_addons