Add logging to discord bot

added 'drowned' event handler in discord bot too

target/classes/log4j2.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Configuration status="WARN">
+    <Appenders>
+        <File name="File" fileName="logs/MCbot.log">
+            <PatternLayout pattern="%d{dd-MM-yyyy HH:mm:ss} [%t] %-5level %logger{36} - %msg%n" />
+        </File>
+    </Appenders>
+    <Loggers>
+        <Root level="info">
+            <AppenderRef ref="File" />
+        </Root>
+    </Loggers>
+</Configuration>