Partial en-US translation applied to base page

[Cleista]

Features:

Added i18n support to /pages/GFT_Echelon.html, allowing translations to be made on top of the same codebase Auto-detect en-US locale and switch to English Translated most UI elements, items, and doll names /pages/GFT_Echelon-EN.html now redirects to /pages/GFT_Echelon.html

Not yet done:

Detailed special unit setting translations

Adding more languages:

Add page translations to localization_strings in /js/hycdes_i18n.js Add your locale to the navigator.language detection code in /js/hycdes_i18n.js Add lib_language_[lang] to /js/Echelon_guide_CN.js and add it as an appropriate property of libs_language Add lib_name_[lang] to /js/Class_main.js and add it as an appropriate property of libs_name