sol-netctl: sol-netctl init and shutdown are implemented for connman
sol-netctl: sol-netctl init and shutdown are implemented for connman

sol-netctl init/shutdown are implemented.
It based on connman and wraps the D-Bus APIs of connman.
init/shutdown are not true to init/shutdown sol-netctl.
init_lazy/shutdown_lazy are true to init/shutdown sol-netctl.

Signed-off-by: Wu Zheng <4b7cba6bb21d631d2203da4ef98001978ba4fa0b@intel.com>

dorileo/soletta,brunobottazzini/soletta,bsmelo/soletta,lpereira/soletta,dorileo/soletta,wzhen12/soletta,wzhen12/soletta,bsmelo/soletta,lpereira/soletta,brunobottazzini/soletta,dorileo/soletta,brunobottazzini/soletta,brunobottazzini/soletta,lpereira/soletta,dorileo/soletta,edersondisouza/soletta,edersondisouza/soletta,bsmelo/soletta,dorileo/soletta,wzhen12/soletta,lpereira/soletta,dorileo/soletta,wzhen12/soletta,lpereira/soletta,edersondisouza/soletta,edersondisouza/soletta,bsmelo/soletta,wzhen12/soletta,bsmelo/soletta,edersondisouza/soletta,brunobottazzini/soletta,edersondisouza/soletta,wzhen12/soletta,bsmelo/soletta,brunobottazzini/soletta