Function gaussian

gaussian(skew?: number): number
Returns a random number with gaussian (ie. bell-curved) distribution
Parameters
- skew: number = 1
  Skew factor. Defaults to 1, no skewing. Above 1 will skew to left, below 1 will skew to right
Returns number
Example: Random number between 0..1 with gaussian distribution
```
import * as Random from 'https://unpkg.com/ixfx/dist/random.js';
Random.gaussian();
```
Example: Distribution can be skewed
```
Random.gaussian(10);
```