Add infomation of this repository

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Add debian directory

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Add nonfree package

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>