Moga

I added in a check for using AXIS_BRAKE / AXIS_GAS if AXIS_LTRIGGER / AXIS_RTRIGGER return zero. I'm not sure how many controllers actually do this aside from the Mogas. I also added an iCade profile for the Moga Hero Power, it might work with other Moga controllers that use a HID mode, but I only have the Hero Power to test with.