Pass props from route

Should be able to pass props to a routes component from the route.

Thinking:

```javascript
new Route({
  path: '/foo',
  component: Foo,
  props: {
    this: 'that'
  }
})
```

would result in a props object (before hooks etc...) of:

```javascript
{
  path: '/foo' # completePath to route
  this: 'that'
  router: router
}
```