Add Chinese Simplified (zh-CN) Lorem and Text provider

[ganlvtech]

[ganlvtech]

Lorem has moved to another repo https://github.com/ganlvtech/faker-chinese-lorem . even after reading #1011 , I still don't know how to provide a Lorem provider gracefully.

The base text was written in 1926, and the previous link was wrong by my mistake. I have fixed it. Now, it reference to a correct location.

[ganlvtech]

• [x] Readme changed.
• [x] Text long enough.
• [x] No lorem provider.
• [x] Test case added.

[ganlvtech]

@pimjansen What do think about adding ext-mbstring to package.json

[pimjansen]

@ganlvtech not a fan of this since it would mean a breaking change. We are not allowing it till we start with Faker 2.0 later this year.

So for 1.x we cant

[singleseeker]

Any update？