Add properties for min, max and step values for various camera settings to <app-media-image-capture>

[FluorescentHallucinogen]

What about adding properties for minimum, maximum and step values for each camera settings to <app-media-image-capture> element?

It makes data binding easy:

<app-media-image-capture
  stream="[[stream]]"
  zoom-min="{{zoomMin}}"
  zoom-max="{{zoomMax}}"
  zoom-step="{{zoomStep}}"
  zoom="{{zoom}}"
  last-photo="{{photo}}">
</app-media-image-capture>

<paper-slider
  min="[[zoomMin]]"
  max="[[zoomMax]]"
  step="[[zoomStep]]"
  value="{{zoom}}">
</paper-slider>

[FluorescentHallucinogen]

@cdata WDYT?