CLOUDSTACK-4378 : Existing tests were deploying VMs as admin and creating
affinity groups as admin. There are few reason why this needs to be changed and
the reasons are as mentioned below
1. we usually create an account for each test and we run the test as the newly
created account and not as admin.
2. tests were failing during deployVirtualMachine step when they are run as
admin and if anyone during these tests create an additional isolated networks
as admin account .
(P.S: current deployVirtualMachine in the scripts is not taking the networkId
and hence it fails when there are multiple isolated networks because it doesn't
know which one to pick)
Signed-off-by: venkataswamybabu budumuru <venkataswamybabu.budumuru@citrix.com>