function actionViewIntent(path:string, mime:string = 'text/plain') {
  if(Platform.OS === 'android')
    return RNFetchBlob.actionViewIntent(path, mime)
  else
    return Promise.reject('RNFetchBlob.android.actionViewIntent only supports Android.')
}
Send an intent to open the file.
@param  {string]} path Path of the file to be open.
@param  {string} mime MIME type string
@return {Promise}