Support for HID devices

[heec]

It would be great if you could add support for creating HID devices with kaluma.

One possibility could be to provide a base HID class. The specific devices (mouse, keyboard, joystick, midi, ...) could then be implemented in javascript.

something like...

var hidDevice = new HID_Device(DEVICE_TYPE);
hidDevice.sendReport([...]);

class Keyboard {  
  constructor() {
    this.hid = new HID(TYPE_KEYBOARD)
    this.report = []
  }
  update(...keys) {
    // update report
    this.hid.sendReport(this.report)
  }
  press(...keys) {
    this.update(keys)
  }
  releaseAll() {
    this.update([])
  }
}

[niklauslee]

It's good idea! I have just open an issue(#384) as a feature.

[Damato]

Commented possible starting point and applications, as creating something with Media controls, or just a Keyboard / Mouse might be useful to many.