1. Add sensors
	- sensor_driveer.c		Add new driver
	- sensor_sdr.c			Add new SDR
	- main.h				SENSOR_NUMBERS = ?

2. Web Access IPMC through SendMessage and GetMessage command

3. UserInfoTbl
	UserInfo 保存在flash里，offset = 0x800000； UserId从1开始。
	g_BMCInfo.UserInfoTbl[0]: UserId = 1
	g_BMCInfo.UserInfoTbl[1]: UserId = 2
	g_BMCInfo.UserInfoTbl[2]: UserId = 3
	...

4. SessionTblInfo
	所有的当前会话信息均保存在SessionTblInfo里，Init_SessionTbl用来初始化结构体。