TestSuite for VM commands

Covers Azure VM commands with mocking(nock)
generic password value

generic password value
Test case for vm upload disk

Test case for vm upload disk
test case for vm disk upload

test case for vm disk upload
Added Location list

Added Location list
Testcases for upload and attach-new disk

Testcases for upload and attach-new disk
Test Suite for Vm create for using ssh cert

Test Suite for Vm create for using ssh cert
achieved  code coverage for vm commands is 70%
Update Readme Build according to Travis
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