scripts/bash/lxd-client: Add missing network sub-commands
scripts/bash/lxd-client: Add missing network sub-commands

Fixes https://github.com/lxc/lxd-pkg-snap/issues/107

Signed-off-by: Thomas Parrott <6b778ce645fb0e3dde76d79eccad490955b1ae74@canonical.com>

stgraber/lxd,stgraber/lxd,lxc/lxd,lxc/lxd,stgraber/lxd,stgraber/lxd,stgraber/lxd,stgraber/lxd,lxc/lxd,lxc/lxd,lxc/lxd,lxc/lxd,stgraber/lxd,lxc/lxd