network: add network counter
network: add network counter

Signed-off-by: Christian Brauner <48455ab3070520a2d174545c7239d6d0fabd9a83@ubuntu.com>

aeris/lxc,LynxChaus/lxc,thmo/lxc,federicobriata/lxc,hallyn/lxc,caglar10ur/lxc,hallyn/lxc,ss1h2a3tw/lxc,thmo/lxc,ss1h2a3tw/lxc,terceiro/lxc,thmo/lxc,ss1h2a3tw/lxc,aeris/lxc,caglar10ur/lxc,LynxChaus/lxc,federicobriata/lxc,hallyn/lxc,federicobriata/lxc,caglar10ur/lxc,LynxChaus/lxc,aeris/lxc,terceiro/lxc,terceiro/lxc