[ResourceBundle] Automatic form registration

| Q             | A
| ------------- | ---
| Bug fix?      | [no]
| New feature?  | [yes]
| BC breaks?    | [no]
| Deprecations? | [no]
| Tests pass?   | [yes]
| Fixed tickets | [ #1384 ]
| License       | MIT
| Doc PR        | []

Register resource form types as services.
Its possible register many form for resourse, i.e:
```yml
classes:
    controller: MyControllerClass
    form:
        default:             MyBundle\Form\Type\AnyResourceType
        short:                MyBundle\Form\Type\AnyResourceShortType
    choice_form:        MyBundle\Form\Type\AnyResourceChoiceType
```
I guess that this should be called `Fixture` to not confuse anyone.