Update zh_TW.lang

1. Adjustment starter trademark's paragraph arrangement.
2. Added a gui text.
3. Added Hidden items.
***I did not find Hidden items's text from "en_US.lang" in "Pixelmon-1.7.10-3.3.4-universal.jar", so I capture these codes from en_US.lang's history in github.com
Update zh_TW.lang

I rearranged the pixelmon Code according to the National Pokedex number

I also produced an English(US) version, if you need : 
en_US - Code of pixelmon by National Pokedex number.lang 102 KB
https://mega.co.nz/#!vwpElR6a!7Een-WM1WhivChRpuW9huvPB5QIKHpdwRhftxC0Pjv4
Merge pull request #52 from eva08maicy02/patch-6

Update zh_TW.lang