v0.4.4 - Faster status messages, wallet address not needed

This version includes the following changes:

• The summary status message now includes the wallet's BNB balance, total balance of tokens in BNB, and the sum of both
• The status messages have been optimized to make fewer network requests, thus being overall faster now
• The way the bot handles transaction receipts has been improved, to use the event data defined in the ABI for each contract (this is used to extract the amount of received tokens/BNB).
• The config file doesn't include the wallet address anymore, as it can be inferred from the private key which is anyway provided. You can remove the wallet item in your config file. This item, as well as bscscan_api_key, are deprecated and will raise an error in version 1.0.0.