Automatic parsing of Vec<SomeSynType> collections

[sam0x17]

I think the built-in support for bracket/brace/paren delimited things is great. I have been thinking about seeing if I could submit a PR that would make the following "just work":

#[derive(derive_syn_parse::Parse))
struct MyArgs {
    #[brace]
    _brace: Brace,
    #[inside(_brace)]
    contents: Vec<Stmt>,
}

In other words, I want to extend derive_syn_parse so that any Vec containing a type that implements Parse is automatically digestible by derive_syn_parse.

The way this would work under the hood is in the expansion, we would automatically output the following for such fields within the Parse implementation:

let mut #field_name = Vec::new();
while (some condition relating to the subsequent field) {
    #field_name.push(input.parse()?);
}

Would you be interested in such a PR and/or do you think something like this would be feasible @sharnoff?