Translators

stronger preaccelerate() and add it to translate_text().

stronger preaccelerate().
update and change structure of readme.md

add preaccelerate().
stronger caiyun(), youdaoV1().
update readme.md

tencent() --> qqFanyi().
add qqTranSmart().
add modernMT().
add myMemory().
add iflyrec().
add volcEngine() but not completed. 106
follow to change and stronger baidu(), itranslate(), lingvanex().
add func and parameter `update_session_after_freq`.
stronger func get_server_region().
change sleep_seconds from `random.random()` to default=0.
update readme.md

follow to change and recover bing(). 104
follow to change and recover lingnavex().

stronger func time_stat().
stronger google() about parsing data. 101