Save as function in Viewer

[michelpons]

Access to a log file through the Viewer, either directly or through the Controller, may lead to the point where it is necessary to send the log file to a third party as documentation of an issue. Then, rather than having to navigate to the folder where all log files are stored and then make a copy of it, it would be nice to be able to \"Save as\" a log file in whatever location the user needs. This seems especially relevant since the Viewer, with the help of the Controller as well, is minimizing the necessity for the end-user to know the exact location of the log files.