Implement api.output, announcevoice command, a bunch of other tts shit, etc etc etc buh

tts/gtranslate/index.js

@@ -6,7 +6,10 @@ module.exports= class extends BaseEngine {
 	constructor() {
 		super("Google Translate TTS","mp3");
 	}
-	async getSpeech(text, voice='en-us', params={}) {
+	getDefaultVoice() {
+		return 'en-us';
+	}
+	async getSpeech(text, voice=this.getDefaultVoice(), params={}) {
 		const url = tts.getAudioUrl(text, {lang: voice});
 		return fetch(url);
 	}