Refactor files based on beta debug build (#645)

* Rename LegoUnkSaveDataWriter -> LegoCharacterManager

* Refactor mxomni into mxomni/mxmisc

* Refactor legoomni into legoomni/misc

* Resolve deps

* Refactor atom

* Refactor mxutil

* Refactor mxio

* Rename/relocate files

* Fix format

LEGO1/lego/legoomni/src/actors/doors.cpp

@@ -0,0 +1,20 @@
+#include "doors.h"
+
+// STUB: LEGO1 0x10066100
+MxS32 Doors::VTable0x94()
+{
+	// TODO
+	return 0;
+}
+
+// STUB: LEGO1 0x10066250
+void Doors::VTable0x70(float p_float)
+{
+	// TODO
+}
+
+// STUB: LEGO1 0x100664e0
+void Doors::ParseAction(char*)
+{
+	// TODO
+}