libvirt.test: Improve virsh console test for lxc

Signed-off-by: Li Yang <liyang.fnst@cn.fujitsu.com>
libvirt.test: Improve virsh shutdown test for lxc

Signed-off-by: Li Yang <liyang.fnst@cn.fujitsu.com>
libvirt.test: Improve virsh reboot test for lxc

Signed-off-by: Li Yang <liyang.fnst@cn.fujitsu.com>
libvirt.test: Improve virsh setmem test for lxc

Signed-off-by: Li Yang <liyang.fnst@cn.fujitsu.com>
libvirt.test: Improve virsh setmaxmem test for lxc

Signed-off-by: Li Yang <liyang.fnst@cn.fujitsu.com>
libvirt.test: Improve virsh schedinfo test for lxc

Signed-off-by: Li Yang <liyang.fnst@cn.fujitsu.com>
libvirt.test: Improve vncdisplay test for lxc

Signed-off-by: Li Yang <liyang.fnst@cn.fujitsu.com>
libvirt.test: Add at/detach-disk test for lxc

Signed-off-by: Li Yang <liyang.fnst@cn.fujitsu.com>
Merge pull request #222 from liyangfnst/lxc_test

libvirt.test: Improve virsh command test for lxc driver VM