Positive tests for security group quota

1. Test supported values for securiyt group quota
2. Test creating maximum allowed amount of security groups
3. Test creating maximum allowed amount of security groups if
quota is increased
4. Test decreasing security group quota to a value that is less
than amount of already created security groups
5. Test creating security groups when the quota is disabled (set to -1)

Change-Id: I833e5d5e67ef7555c9e6a54613b7324310079b0b
1 file changed