Add Support for Vec<String>

[canewsin]

Currently Vec is only Supported for Vec Types if I was not wrong.

[dvc94ch]

You can use an Iterator instead

[dvc94ch]

So to get a Vec<String> you can do the following:

fn strings() -> Iterator<String>;

pub fn strings() -> Vec<String> {
    vec!["hello".into(), "world".into()]
}

final List<String> strings = api.load().strings().toList();

[canewsin]

Yeah, Already Figured that.

[dvc94ch]

So closing in favor of #44