Added new formaula for librcsc and soccerwindow2

librcsc 4.1.0 and soccerwindow2 5.1.0

librcsc: the library for Robocup soccer simulation.
soccerwindow2: the debugger for Robocup soccer simulation.
soccerwindow2 is dependent on librcsc.
Can this test be modified to do something more substantial then e.g. `--version` or `--help`? See `cmake.rb` for an example of a formula with a good test. Thanks!