Function formatNumber

formatNumber(number: number, opts?: Settings): string
Format a number, with comma-separated thousands and custom precision/decimal places.

Usage:
```
// Default usage
formatNumber(5318008);
// => 5,318,008

// Custom format
formatNumber(9876543.21, { precision: 3, thousand: " " });
// => 9 876 543.210
```
Parameters
- number: number
  Number to be formatted
- Optionalopts: Settings = {}
  Object containing all the options of the method
Returns string
- Given number properly formatted