Add ability to ignore occurrences to avoid flood

[F36]

Traceback (most recent call last):
File "main.py", line 56, in
bot.send_message(config.get('channel-id'), post.get('text'))
File "/data/data/com.termux/files/usr/lib/python3.8/site-packages/telebot/init.py", line 640, in send_message
apihelper.send_message(self.token, chat_id, text, disable_web_page_preview, reply_to_message_id,
File "/data/data/com.termux/files/usr/lib/python3.8/site-packages/telebot/apihelper.py", line 201, in send_message
return _make_request(token, method_url, params=payload, method='post')
File "/data/data/com.termux/files/usr/lib/python3.8/site-packages/telebot/apihelper.py", line 108, in _make_request
json_result = _check_result(method_name, result)
File "/data/data/com.termux/files/usr/lib/python3.8/site-packages/telebot/apihelper.py", line 135, in _check_result
raise ApiTelegramException(method_name, result, result_json)
telebot.apihelper.ApiTelegramException: A request to the Telegram API was unsuccessful. Error code: 429 Description: Too Many Requests: retry after 38

[KristobalJunta]

There is indeed no backoff implemented currently. Will try to add that. But also feel free to send a PR if you have a solution for that.

[craziks-creator]