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

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* add testcase

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

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+module.exports = [
+  {
+    name: 'Arabic (Modern Standard)',
+    value: 'ar-MS_Telephony',
+  },
+  {
+    name: 'Chinese (Mandarin)',
+    value: 'zh-CN_Telephony',
+  },
+  {
+    name: 'Czech ',
+    value: 'cs-CZ_Telephony',
+  },
+  {
+    name: 'Dutch (Belgian)',
+    value: 'nl-BE_Telephony',
+  },
+  {
+    name: 'Dutch (Netherlands)',
+    value: 'nl-NL_Telephony',
+  },
+  {
+    name: 'English (all supported dialects)',
+    value: 'en-WW_Medical_Telephony',
+  },
+  {
+    name: 'English (Australian)',
+    value: 'en-AU_Telephony',
+  },
+  {
+    name: 'English (Indian)',
+    value: 'en-IN_Telephony',
+  },
+  {
+    name: 'English (United Kingdom)',
+    value: 'en-GB_Telephony',
+  },
+  {
+    name: 'English (United States)',
+    value: 'en-US_Telephony',
+  },
+  {
+    name: 'French (Canadian)',
+    value: 'fr-CA_Telephony',
+  },
+  {
+    name: 'French (France)',
+    value: 'fr-FR_Telephony',
+  },
+  {
+    name: 'German',
+    value: 'de-DE_Telephony',
+  },
+  {
+    name: 'Hindi (Indian)',
+    value: 'hi-IN_Telephony',
+  },
+  {
+    name: 'Italian',
+    value: 'it-IT_Telephony',
+  },
+  {
+    name: 'Korean',
+    value: 'ko-KR_Telephony',
+  },
+  {
+    name: 'Portuguese (Brazilian)',
+    value: 'pt-BR_Telephony',
+  },
+  {
+    name: 'Spanish (Mexican)',
+    value: 'es-LA_Telephony',
+  },
+  {
+    name: 'Spanish (Castilian)',
+    value: 'es-ES_Telephony',
+  },
+  {
+    name: 'Swedish ',
+    value: 'sv-SE_Telephony',
+  },
+];