* Create README_ZH_CN.md
* General fixes to Simp. Chinese translation
New translations based on `mgba-template.ts`
Delete unused entries
Fix typos and invaild lines
* A small fix
* Revamped Japanese translation.
* A small fix
* More fixes.
* Qt: A tiny fix in mgba-zh_CN.ts
* Further translation fixes in mgba-ja.ts