lang: experimental: enable russian language

Js/Main.js

@@ -10,8 +10,8 @@ const shaders = new Shaders();
 const textFunc = new TextFunctions();
 let audio = undefined; //Cant create a audio context without user input.
 const player = new Player(pixiApp, utage, textFunc, audio, shaders);
-const languages = ["eng", "jpn"];
-const version = "YameteTomete XDUPlayer V1.2.0";
+const languages = ["eng", "jpn", "rus"];
+const version = "YameteTomete XDUPlayer V1.2.1";
 let bodyLoaded = false;
 let utageLoaded = false;
 let languagesLoaded = false;