Add support for language availability check and download #9
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Currently, the
speak
function fails silently if the requested language is not supported on the device. To address this issue, this PR adds:speak
that requested language is not availablecheckLanguageAvailability(language)
for checking language supportdownloadTTSVoice()
for TTS Voice download pageTogether these changes will allow developers to easily detect and handle error cases where the language support is unavailable on Android device.