Reorganize code and remove hack for empty block outputs

inc/bar.h

@@ -0,0 +1,15 @@
+#pragma once
+#include "block.h"
+#include "config.h"
+#include "util.h"
+
+typedef struct {
+    char *current;
+    char *previous;
+} BarStatus;
+
+extern unsigned short debugMode;
+
+void initStatus(BarStatus *);
+void freeStatus(BarStatus *);
+void writeStatus(BarStatus *);