休假管理模块构建，加增接口：

1、查询当前月的所有休假
2、根据节假日类别查询
3、查询具体日期返回对象

ruoyi-oa/src/main/resources/mapper/oa/SysOaHolidayMapper.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper
+PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.ruoyi.oa.mapper.SysOaHolidayMapper">
+
+    <resultMap type="com.ruoyi.oa.domain.SysOaHoliday" id="SysOaHolidayResult">
+        <result property="holidayId" column="holiday_id"/>
+        <result property="type" column="type"/>
+        <result property="holidayTime" column="holiday_time"/>
+        <result property="name" column="name"/>
+        <result property="createTime" column="create_time"/>
+        <result property="createBy" column="create_by"/>
+        <result property="updateTime" column="update_time"/>
+        <result property="updateBy" column="update_by"/>
+        <result property="remark" column="remark"/>
+        <result property="delFlag" column="del_flag"/>
+    </resultMap>
+
+
+</mapper>