Revert to Connection = ConnectionPoint

[BalderHolst]

Commit 1a939c2 changed the Connectiontype from

pub type Connection = ConnectionPoint;

to

#[derive(Debug, PartialEq, Eq, Clone, Deserialize, Serialize)]
#[serde(untagged)]
pub enum Connection {
    Single(ConnectionPoint),
    Multiple(Vec<ConnectionData>),
}

I find this change rather confusing as a user of this library. Why is a multiply connecton a vector of something different from when I have a single connection? Futhermore, how do i know the type of wire the Multiple connection is talking about?

Because of this confusion i think it is best to revert this change.

[coriolinus]

The previous change is supported by test cases, which this reversion currently fails.

Keep in mind that this library does not define the blueprint string syntax. It's reverse-engineered, but the game is definitive. So I don't really have the option to just adjust the syntax according to my preference.

[BalderHolst]

Ok, fair enough. It seems that all the blueprints I have tested only contain Single connections.