供应商模块保存和更改接口改动

controllers/supply_order_api_contorller.go

 			if len(thisStockIn) == 1 {
 				for _, item := range thisStockIn {
 					items := item.(map[string]interface{})
-					items["Isfirst"] = 1
+					items["isfirst"] = 1
 				}
 			}
 			tmodify := this.GetAdminUserInfo().AdminUser.Id
 			if len(thisStockIn) == 1 {
 				for _, item := range thisStockIn {
 					items := item.(map[string]interface{})
-					items["Isfirst"] = 1
+					items["isfirst"] = 1
 				}
 			}
 			tcreater := this.GetAdminUserInfo().AdminUser.Id