Angular [text] binding not working

It seems like binding the `text` property in angular doesn't work.

My `app.module.ts`:
```
import { registerElement } from "nativescript-angular";
registerElement("NumericKeyboard", () => require("nativescript-numeric-keyboard").NumericKeyboardView);
```

My html file where I use the keyboard:
```

```

The `price` property isn't updated in the ``. If I were to have a normal `` the binding works.

Start with the registration in app.module.ts and the template containing the Label and NumericKeyboard bindings, then compare the working TextField binding with the reported behavior. Done means the price value updates the Label when used through NumericKeyboard as it does with TextField.

Written by the indexing model from the issue text.