Function round2

round2(n: number, base: number): number
Round a number to the nearest multiple of an arbitrary base. Does not round when the base is set to zero.
Parameters
- n: number
  Any number to round
- base: number
  Any base to round to
Returns number
n rounded to the nearest multiple of base
Example
```
const y = SMath.round2(Math.PI, 0.2); // 3.2
```