getInfo returns meta information such as names
 
    This method returns a table of the latest received info.
    It returns immediately and may return the same result more than
    once. Note that info data gets populated by lookup requests,
    which usually get requested at a lower rate than feedback.
    If info is not available, this method returns empty ([]).
 
    The info table contains meta information about modules, such
    as their names, versions, network settings, and serial numbers.
 
    Example
       % Retrieve module names
       info = group.getInfo();
       names = info.name;
 
    Example
       % Check age of received info
       info = group.getInfo();
       age = HebiUtils.now() - info.pcRxTime;
 
    Example
       % Display the lookup polling rate
       HebiLookup