Add Kurdish Kurmanji language

[cikay]

Description

I could not find a document on how to add a new language. I just checked what the existing ones have and added them for Kurdish Kurmanji. I may miss things. Please let me know and also if there is you could provide a doc link for it.

Types of change

Adding a new language Kurdish Kurmanji

Checklist

• I confirm that I have the right to submit this contribution under the project's MIT license.
• I ran the tests, and all new and existing tests passed.
• My changes don't require a change to the documentation, or if they do, I've added all the required information.

[cikay]

Here is a universal dependency corpus https://github.com/UniversalDependencies/UD_Kurmanji-MG for Kurmanji

[cikay]

https://spacy.io/usage/linguistic-features#language-data
Ok, I found it. Here, it is explained about language files and functions shortly.

[honnibal]

Thanks! I haven't reviewed it carefully but it doesn't seem problematic to include it. I don't think I'll have time to add the models just now though.