* Update eid_mcm_cn.lua
* Add new font
cn_alt: new font, which should be default now.
cn_default: the font used in official Chinese, but does not look graceful using in EID. Not the actual default, but still a new option.
cn_old: the legacy font, as an option for the players who still want to used the old font.
Note: the font config can be changed in MCM.
* Update eid_mcm_cn.lua