feat: handles any with RawValue

[juliens]

This PR handles field any as RawValue.

it means that if you have for example something like

"foo.bar.baz"="fuu"
"foo.bar.huu"="hii"

and you try to handle it with a struct like

struct {
  foo any
}

This will do something like this:

{
   foo: map[string]any{
      "bar": map[string]any{
         "baz": "fuu",
         "huu": "hii",
      } 
   }
}

[ldez]

reflect.Interface is the kind used for the interfaces not only for any.

https://go.dev/play/p/gAEcY1vxauO

The real type used to fill an interface's field is not guessable.

The PR should either add tests about the interfaces (and different types) or document the limitations (and be sure that the problem produces a clear error).
The title and the description should also be updated.

In which context do you need to use a field any or an Interface?

[juliens]

I need to have any in the context where I don't know the real struct behind the data. In this context, I think that we were using map[string]interface{} but with this, it's not possible to put a string directly in this field.

To seperate any and real interface, may be I can use NumMethod?

https://go.dev/play/p/Jt7nSJ6veOO