IgniteCliInterfaceTest can fail on Windows

IgniteCliInterfaceTest does not take into account that line separators can differ between different operating systems. Under Windows, it's typically \r\n instead of just \n, which causes multiple test cases to fail.

To make sure these tests pass on every OS, we should compare a multi-line output line by line (i.e. convert both expected and actual string values to lists of lines and verify that these lists are the same).