add opencart 4 language pack translation support

beta-0.1.3.0

添加OpenCartTranslator，支持OpenCart4的语言包翻译

add php resouce file support and restruct the translator class

add php resouce file support and restruct the translator class

adding var support

translation result now support var flags.

first beta version

if you don't want to build bin for yourself,you can just download it.