add automation test for azure shell

[alexazarh]

Custom Image : http://team:8080/tfs/Quali-Collection/QualiSystems/_testManagement#planId=125053&suiteId=157794 3 tests.
Extension: http://team:8080/tfs/Quali-Collection/QualiSystems/_testManagement#planId=125053&suiteId=158311 2 tests.
NSG: http://team:8080/tfs/Quali-Collection/QualiSystems/_testManagement#planId=125053&suiteId=156071 2 tests.