Show label with value like a Tooltip

[BrOrlandi]

It resolved #6

If anyone wants to use it, we have released this component here @kassellabs/react-semantic-ui-range

The tooltip style customization is totally up to the project that uses it to decide, In our case, we're using it like this:

<Slider
  value={value}
  discrete={discrete}
  tooltip={(currentValue) => (
    <SliderTooltip position={tooltipPosition} value={currentValue} />
  )}
  style={{
    trackFill: {
      backgroundColor: '#007EA7',
    },
  }}
  settings={{
    tooltipPosition,
    start: value,
    max,
    min,
    step,
    onChange,
  }}
/>