Translated Game Control Panel into Chinese for Version 1.2

I did about 75% of this translation based on my existing knowledge of
Mandarin and the other 25% using translation tools. I have tested this,
but I will need to go over my work with one of my software developer
friends who is a native Chinese speaker (so they can correct my
Chinese). This is also scalable to any language and any number of
languages through the custom translation class.