Reworked zh_cn translation

[HfSrJun]

zh_cn translation of this mod is in bad quality and missing some contents, so I renewed it last year, and now I am PRing it to github. This translation has already accepted by GTNH's fork of OC, and passed the strict review from the Chinese translation team of GTNH, so don't worry about the quality. I also uploaded it to CFPA(the biggest 3rd-party mc mod translation community in China), but it is still under reviewing by now (because of the lack of reviewers). Further more, I finished most of the Chinese translation of official wiki.