[FEAT] NLP property - sudden stop

[Nadav Barak]

We want to add an additional property of sudden stop, meaning a binary classifier that detects whether or not generated text was stoped mid-sentence. for example:

The Joachimsthaler of the Kingdom of Bohemia was

The property must work well on english text.
When adding the property:

1. it should be added in code to deepchecks/nlp/utils/text_properties.py
2. it should be incorporated in the calculate_builtin_properties function
3. Test for the property should by added to tests/nlp/utils/test_properties.py
4. Documentation for the property should be added to docs/source/nlp/usage_guides/nlp_properties.rst

[Nadav Barak]

@Ragh

[Eddy Oyieko]

I'd like to work on this feature @Nadav-Barak