Added visual, new waveforms, and Mac VERSION!

Hey everyone! So I decided to add a visual cursor of sorts to track movement, with a fun trail behind it.  Also, I decided to add different waveform options, which you can now select between with 1, 2, and 3.  The cursor also changes to reflect the waveform type.  Finally, I dusted off my old Macbook, updated it, got GMS2 installed on it, all to be able to MAKE A MAC BUILD! So, to all my mac user friends, and those interested in this toy, HERE YOU GO! :)