feat(ngView): reference resolved locals in scope

All the resolves for a route are now attached to the route's local scope,
as the property whose name is given by the `resolveAs` property on the
route definition.

If `resolveAs` is not specified it defaults to `$resolve`.

This will make it easier to use `ngRoute`, by being able to reference all
the resolve values for the route, directly on the scope, rather than having
to implement a controller just to copy the resolves across manually.

For example, rather than

```js
$routeProvider.when('/', {
  resolve: {
    item1: ($http) => $http.get(...),
    item2: ($http) => $http.get(...)
  },
  template: '<my-app item1="vm.item1" item2="vm.item2">'</my-app>`,
  controllerAs: 'vm',
  controller: ['item1', 'item2', function(item1, item2) {
    this.item1 = item1;
    this.item2 = item2;
  }]
});
```

one can now do

```js
$routeProvider.when('/', {
  resolve: {
    item1: ($http) => $http.get(...),
    item2: ($http) => $http.get(...)
  },
  template: '<my-app item1="$resolve.item1" item2="$resolve.item2">'</my-app>`
});
```

BREAKING CHANGE:

A new property is being attached to the scope of the route. The default name
for this property is `$resolve`. If your scope already contains a property
with this name then it will be hidden or overwritten.

In this case, you should choose a custom name for this property, that will
not collide with other properties on the scope, by specifying the `resolveAs`
property on the route.

Closes #13400