before add device

Signed-off-by: drizztz <kiddzhang@yeah.net>
Merge branch 'master' of https://github.com/drizztz/Axalent

Conflicts:
	Axalent/Resource/axalent_db.sqlite

Signed-off-by: drizztz <kiddzhang@yeah.net>
ROOM DAO

Signed-off-by: drizztz <kiddzhang@yeah.net>