Update lendingbot.py
Update lendingbot.py

Add the option to display the Account Estimated Earnings on BTC or in USD
Mikadily/poloniexlendingbot,BitBotFactory/poloniexlendingbot,laxdog/poloniexlendingbot,Mikadily/poloniexlendingbot,yura-pakhuchiy/poloniexlendingbot,BitBotFactory/poloniexlendingbot,BitBotFactory/poloniexlendingbot,laxdog/poloniexlendingbot,yura-pakhuchiy/poloniexlendingbot,Mikadily/poloniexlendingbot,mahiso/poloniexlendingbot,yura-pakhuchiy/poloniexlendingbot,mahiso/poloniexlendingbot,mahiso/poloniexlendingbot,mahiso/poloniexlendingbot,BitBotFactory/poloniexlendingbot,laxdog/poloniexlendingbot