Function scale

scale(
    v: number,
    inMin: number,
    inMax: number,
    outMin?: number,
    outMax?: number,
    easing?: (v: number) => number,
): number
Scales v from an input range to an output range (aka map)

For example, if a sensor's useful range is 100-500, scale it to a percentage:
```
import { scale } from 'https://unpkg.com/ixfx/dist/data.js';

scale(sensorReading, 100, 500, 0, 1);
```
scale defaults to a percentage-range output, so you can get away with:
```
scale(sensorReading, 100, 500);
```
If v is outside of the input range, it will likewise be outside of the output range. Use scaleClamped to clip value to range.

If inMin and inMax are equal, outMax will be returned.

An easing function can be provided for non-linear scaling. In this case the input value is 'pre scaled' using the function before it is applied to the output range.
```
scale(sensorReading, 100, 500, 0, 1, Easings.gaussian());
```
Parameters
- v: number
  Value to scale
- inMin: number
  Input minimum
- inMax: number
  Input maximum
- OptionaloutMin: number
  Output minimum. If not specified, 0
- OptionaloutMax: number
  Output maximum. If not specified, 1
- Optionaleasing: (v: number) => number
  Easing function
Returns number
Scaled value