供应商模块保存和更改接口改动

controllers/supply_order_api_contorller.go

 //保存供应商及联系人（用于更改）
 func (this *SupplyOrderApiController) UpdateSupply() {
 	dataBody := make(map[string]interface{}, 0)
-	supplierName := dataBody["supplierName"].(string)
+	supplierName := dataBody["suppliername"].(string)
 	if supplierName == "" {
 		this.ServeFailJsonSend(enums.ErrorCodeParamWrong, "供应商名称不能为空")
 		return