Hook Bindings

Would be cool if we could make hooks like
```hx
@:hook("Tick")
function tick() {
	Sys.println("Hi");
}
```

or
```hx
@Event("Tick")
function tick() {
	trace("Hi");
}
```
Similar to how it works in S&Box right now

I'm not to the point in Haxe skill where I could easily get it to use the hook's arguments in these events but it'd be easy syntax sugar for ``hook.add(...)``