CC0124 Replace if statement or operator with call to Math.Max

# New analyzer:

Replace if statement or operator with call to Math.Max. 

Max is easier to read and quite often shorter.

Before:

``` vb.net
     a = If(b >= c, b, c) 

```

After:

``` vb.net
  a = Math.Max(b, c)
```

You can add more information here, e.g. conditions under which a diagnostic should not trigger, etc.

Diagnostic Id: `CC0124`
Category: `Maintainability`
Severity: `Info`
