Support for 1.0 RAML

Please add support for 1.0 version of raml.

Atleast support for multiple examples at once.

```
example: A string with a single example for the body.
examples: A mapping of examples, where the key is the name of the example

examples:
adminUser:
description: An `admin` user has the `admin` property set to `true` and has the `allowed-operations` collection populated with the all the actions it can perform
example: |
{ an example of the JSON here }
normalUser:
description: A `normal` user does not have the `admin` property turned on.
example: |
{ an example of the JSON here }
```

It will help to validate multiple responses without hooks.

Let's say I would like to check url `/client/{id}` for `200` and `404`. I could add two examples. One would provide correct ID for existing (stubbed) user and second would not.
`Abao` would validate, that both responses are correct.

Start by reviewing the existing RAML support and the RAML 1.0 examples described in the issue. Confirm how Abao currently validates a single response, then define the completion criteria around accepting multiple named examples and validating both 200 and 404 responses without hooks.

Written by the indexing model from the issue text.