setup row adding/removal on guild changes, improved logging + basic command processing, add logging format to main file

main.py

@@ -1,7 +1,19 @@
-from contest import client
+import logging
+
+from contest import client, constants
 
 if __name__ == "__main__":
     bot = client.ContestClient()
 
+    logger = logging.getLogger(__file__)
+    logger.setLevel(constants.LOGGING_LEVEL)
+
+    logging.basicConfig(format='[%(asctime)s] [%(levelname)s] [%(funcName)s] %(message)s',
+                        handlers=[
+                            logging.FileHandler(f"bot.log", encoding='utf-8'),
+                            logging.StreamHandler()
+                        ])
+
+    logger.info('Starting bot.')
     with open('token.dat', 'r') as file:
         bot.run(file.read())