object whose properties are objects

There is an issue when printing objects whose properties are objects. For example:

```
function Person(firstName, lastName) {
this.firstName = firstName;
this.lastName = lastName;
}

var family = {};

family.mother = new Person("Jane", "Smith");
family.father = new Person("John", "Smith");
family.daughter = new Person("Emily", "Smith");

console.table(family);
```

Results in:
```
key value
-------- ---------------
mother [object Object]
father [object Object]
daughter [object Object]
```
The expectation here is that there should be `firstName` and `lastName` columns.
More details can be found here: https://developer.mozilla.org/en-US/docs/Web/API/Console/table

Start by reproducing the nested-object example from the issue and compare the output with the linked MDN console.table behavior. Trace the repository's console.table entry point to see how object properties become columns; done means family displays firstName and lastName columns instead of [object Object].

Written by the indexing model from the issue text.