Need to be able to plug in known controller values without consulting SDLDB

[h3rb]

You should be able to define an entire controller schema from the ground up. Functionality should resemble:

Expect:

{
  "name" : "Atari Modern Controller",
  "sticks" : [
     "left" : { up: { (axis_no), ranges: { linux: {min: 0.5, max: 1.0}, windows: {0, 1.0}, down: (axis_no), left: (axis).... etc }
     ],
  "buttons": [
     "X" : IC_button_Y, ....
    ],
    
}

I need to double check if this functionality is already available, which brings me to the next issue.