Add functions-zone

Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>
Add zone_test_1.sh

Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>
Add zone_test_2.sh

Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>
Add zone_test_3.sh

Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>