jukebox ctor (#356)

* jukebox ctor

* naming conventions

* Fixes

---------

Co-authored-by: Christian Semmler <mail@csemmler.com>

LEGO1/jukebox.cpp

@@ -1,7 +1,14 @@
 #include "jukebox.h"
 
-// STUB: LEGO1 0x1005d660
+#include "mxnotificationmanager.h"
+#include "mxomni.h"
+
+DECOMP_SIZE_ASSERT(JukeBox, 0x104)
+
+// FUNCTION: LEGO1 0x1005d660
 JukeBox::JukeBox()
 {
-	// TODO
+	m_unk0x100 = 0;
+	m_unk0xfc = 0;
+	NotificationManager()->Register(this);
 }