feat(batarang): expose transcluded and isolate scope info for batarang

Exposes a value on the scope if the scope is transcluded, as well as a mapping from outer to inner scope matching the `scope` parameter of a directive.

This is what the current API looks like:
```javascript
scope.$$isolateBindings = {
   innerValue: "=outerBinding"
};
```

```javascript
scope.$$transcluded = true | false
```

I'd like some input from @IgorMinar and @mhevery on this.