provide framework for application logging

src/main/java/com/sparrowwallet/sparrow/TorLogHandler.java

@@ -0,0 +1,12 @@
+package com.sparrowwallet.sparrow;
+
+import com.sparrowwallet.drongo.LogHandler;
+import com.sparrowwallet.sparrow.event.TorStatusEvent;
+import org.slf4j.event.Level;
+
+public class TorLogHandler implements LogHandler {
+    @Override
+    public void handleLog(String threadName, Level level, String message, String loggerName, long timestamp, StackTraceElement[] callerData) {
+        EventManager.get().post(new TorStatusEvent(message));
+    }
+}