v5.x DRAFT: fixed router types :)

[kwhitley]

Changes

Previously in v4.x, you were forced to either use a universal Request type at the router level, or override routes individually using generics, but not both.

const router = <FooRequest>Router()

router.get('/', (request) => { request.foo })

// would not work, due to the router-level generic
// THIS NOW WORKS IN v5.x :)
router.get<BarRequest>('/', (request) => { request.foo })

Now, we can use both simultaneously. A router-level generic for all routes within the router, and individual route-level generic overrides.