Add 4 cases to test following guestfish commands

blockdev-getbsz
blockdev-getsize64
blockdev-getss
blockdev-getsz
libvirt.tests: Add test for vol-resize

Signed-off-by: Yanbing Du <ydu@redhat.com>
lvsb: Add simple cases for complex options testing

Signed-off-by: Alex Jia <ajia@redhat.com>
lvsb: sync security options cases with latest sandbox framework

Signed-off-by: Alex Jia <ajia@redhat.com>
Merge pull request #105 from yumingfei/lvsb_complex_options

LVSB: Lvsb complex options
guestfish_block_dev: fix a minior issue

1.Modify the way of parsing the string, it can be sutiable for more
situtation
2.Remove the fs type from cfg file, it's useless to block_dev test
Merge pull request #98 from vanbogithub/bfan-dev

Add 4 cases to test following guestfish commands
Merge pull request #73 from will-Do/vol_resize

libvirt.tests: Add test for vol-resize