Simple Event Bus

Minimal event bus in rust. It provides a basic event bus system that works with (probably) any type.

Example Usage:

```rust use simpleeventbus::{Event, EventBus, Subscriber};

struct ExampleSubscriber { pub name: String, }

impl ExampleSubscriber { pub fn new(name: String) -> ExampleSubscriber { ExampleSubscriber { name: name } } }

impl Subscriber for ExampleSubscriber { type Input = String;

fn on_event(&mut self, message: &Event<Self::Input>) {
    println!("{} received message: {}", self.name, message.get_data());
}

}

fn main() { let mut messagequeue = EventBus::new(); messagequeue.subscribelistener(Box::new(ExampleSubscriber::new("listener 1".tostring()))); messagequeue.subscribelistener(Box::new(ExampleSubscriber::new("listener 2".to_string())));

message_queue.publish(Event::new("hello".to_string()));
message_queue.publish(Event::new("world".to_string()));

// Runs through each event, and calls each listener's on_event method.
message_queue.run();

} ```

Feel free to fork this implementation to add your own features!