add new file

+品牌优惠券接口服务定义
+---------------------
+相关数据表：yhb_promotion.brand_coupons
+
+## 添加品牌优惠券接口
+
+> 接口名：brandCoupon/add
+
+### 入参
+
+-------------------------
+|属性名称|类型|可否为空|例子|说明| 
+|--------|----|--------|----|----|
+|brandId|int|否|949|品牌ID|
+|brandName|string|否|004|品牌名称|
+|couponsId|int|否|18|优惠券ID|
+|status|int|否|1|状态|
+---------------------
+
+### 返回
+
+``` json
+{
+  "code": 200,
+  "data": [],
+  "md5": "d751713988987e9331980363e24189ce",
+  "message": "添加成功."
+}
+
+```
+
+## 根据ID查询品牌优惠券接口
+
+> 接口名：brandCoupon/queryById
+
+### 入参
+
+-------------------------
+|属性名称|类型|可否为空|例子|说明| 
+|--------|----|--------|----|----|
+|id|int|否|70|品牌优惠券记录ID|
+---------------------
+
+### 返回
+
+``` json
+{
+  "code": 200,
+  "data": {
+    "brandId": 1,
+    "brandName": "004",
+    "couponsId": 15,
+    "createPersonId": 0,
+    "createPersonName": "",
+    "createTime": 1464156770,
+    "id": 70,
+    "status": 1,
+    "updatePersonId": 0,
+    "updatePersonName": "  ",
+    "updateTime": 0
+  },
+  "md5": "5b21db9834247309d36907c80bb215da",
+  "message": "操作成功"
+}
+
+```
+
+## 更新品牌优惠券接口
+
+> 接口名：brandCoupon/update
+
+### 入参
+
+-------------------------
+|属性名称|类型|可否为空|例子|说明| 
+|--------|----|--------|----|----|
+|id|int|否|70|品牌优惠券记录ID|
+|brandId|int|否|949|品牌ID|
+|brandName|string|否|004|品牌名称|
+|couponsId|int|否|18|优惠券ID|
+|status|int|否|1|状态|
+---------------------
+
+### 返回
+
+``` json
+{
+  "code": 200,
+  "data": [],
+  "md5": "d751713988987e9331980363e24189ce",
+  "message": "更新成功."
+}
+
+```
+
+## 查询品牌优惠券分页列表
+
+> 接口名：brandCoupon/queryList
+
+### 入参
+
+-------------------------
+|属性名称|类型|可否为空|例子|说明| 
+|--------|----|--------|----|----|
+|brandName|string|是|004|品牌名称|
+|status|int|是|1|状态|
+|couponsId|int|是|15|优惠券ID|
+|page|int|是|2|页码，默认1|
+|size|int|是|2|每页显示数量，默认10|
+---------------------
+
+### 返回
+
+``` json
+{
+  "code": 200,
+  "data": {
+    "list": [
+      {
+        "brandName": "004",
+        "couponsId": 15,
+        "createTime": 1464156770,
+        "id": 70,
+        "status": 2,
+        "updateTime": 1464157315
+      },
+      {
+        "brandName": "004",
+        "couponsId": 12426,
+        "createTime": 1459222650,
+        "id": 67,
+        "status": 2,
+        "updateTime": 0
+      }
+    ],
+    "page": 1,
+    "size": 2,
+    "total": 66,
+    "totalPage": 33
+  },
+  "md5": "688dfacbf6477dd7d3812ea7d5db4a32",
+  "message": "操作成功"
+}
+
+```
+
+