in Applications I found plugins like "test_gfx.rock", "test_mem.rock", "test_disk.rock" and others. I found no documentation about them, but can think of what they could do. I can run them and then have some log files on the player, but how do I interpret the results? I don't have these plugins on my iPod 5.5G (dev build from march 2016). So how do I use those plugins and are they available for other targets too?