TTS/STT languages and voices for each provider (#281)

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* add testcase

lib/utils/speech-data/stt-deepgram.js

@@ -0,0 +1,138 @@
+module.exports = [
+  {
+    name: 'Chinese - general',
+    value: 'zh',
+  },
+  {
+    name: 'Chinese (China)',
+    value: 'zh-CN',
+  },
+  {
+    name: 'Chinese (Taiwan)',
+    value: 'zh-TW',
+  },
+  {
+    name: 'Dutch - general',
+    value: 'nl',
+  },
+  {
+    name: 'English - general',
+    value: 'en',
+  },
+  {
+    name: 'English (Australia)',
+    value: 'en-AU',
+  },
+  {
+    name: 'English (United Kingdom)',
+    value: 'en-GB',
+  },
+  {
+    name: 'English (India)',
+    value: 'en-IN',
+  },
+  {
+    name: 'English (New Zealand)',
+    value: 'en-NZ',
+  },
+  {
+    name: 'English (United States)',
+    value: 'en-US',
+  },
+  {
+    name: 'French - general',
+    value: 'fr',
+  },
+  {
+    name: 'French (Canada)',
+    value: 'fr-CA',
+  },
+  {
+    name: 'German - general',
+    value: 'de',
+  },
+  {
+    name: 'Hindi - general',
+    value: 'hi',
+  },
+  {
+    name: 'Hindi (Roman Script)',
+    value: 'hi-Latin',
+  },
+  {
+    name: 'Indonesian - general',
+    value: 'in',
+  },
+  {
+    name: 'Italian - general',
+    value: 'it',
+  },
+  {
+    name: 'Japanese - general',
+    value: 'ja',
+  },
+  {
+    name: 'Korean - general',
+    value: 'ko',
+  },
+  {
+    name: 'Norwegian - general',
+    value: 'no',
+  },
+  {
+    name: 'Polish - general',
+    value: 'pl',
+  },
+  {
+    name: 'Portuguese - general',
+    value: 'pt',
+  },
+  {
+    name: 'Portuguese (Brazil)',
+    value: 'pt-BR',
+  },
+  {
+    name: 'Portuguese (Portugal)',
+    value: 'pt-PT',
+  },
+  {
+    name: 'Russian - general',
+    value: 'ru',
+  },
+  {
+    name: 'Spanish - general',
+    value: 'es',
+  },
+  {
+    name: 'Spanish (Latin America)',
+    value: 'es-419',
+  },
+  {
+    name: 'Swedish - general',
+    value: 'sv',
+  },
+  {
+    name: 'Turkish - general',
+    value: 'tr',
+  },
+  {
+    name: 'Ukrainian - general',
+    value: 'uk',
+  },
+  {
+    name: 'Flemish - general',
+    value: 'nl-BE',
+  },
+  {
+    name: 'Danish - general',
+    value: 'da',
+  },
+  {
+    name: 'Tamil - general',
+    value: 'ta',
+  },
+  {
+    name: 'Tamasheq - general',
+    value: 'taq',
+  },
+];