Blank lines option

Is possible to have an option to add blank line rule(s) in the formatter?
Eg transform this
```ts
class Temp {
    @Dec1
    prop1! int;
    @Dec2
    prop2! string;
}
```

to this:
```ts
class Temp {
    @Dec1
    prop1! int;

    @Dec2
    prop2! string;
}
```

or this:
```ts
class Temp {

    @Dec1
    prop1! int;

    @Dec2
    prop2! string;

}
```
