normalize header guards to {tu_name}_H_ (#87)

i previously had a bad habit of using double underscores in include
guard macro names, which are implementation-reserved per
the C++98 standard (see 17.4.3.1.2 Global names).

Co-authored-by: Pheenoh <pheenoh@gmail.com>

include/m_Do/m_Do_Reset/m_Do_Reset.h

@@ -1,5 +1,5 @@
-#ifndef __M_DO_RESET_H__
-#define __M_DO_RESET_H__
+#ifndef M_DO_RESET_H_
+#define M_DO_RESET_H_
 
 #include "JSystem/JUtility/JUTXfb/JUTXfb.h"
 #include "dolphin/types.h"

include/m_Do/m_Do_controller_pad/m_Do_controller_pad.h

@@ -1,5 +1,5 @@
-#ifndef __M_DO_CONTROLLER_PAD_H_
-#define __M_DO_CONTROLLER_PAD_H_
+#ifndef M_DO_CONTROLLER_PAD_H_
+#define M_DO_CONTROLLER_PAD_H_
 
 #include "JSystem/JUtility/JUTGamePad/JUTGamePad.h"
 #include "SComponent/c_API_controller_pad.h"

include/m_Do/m_Do_ext/m_Do_ext.h

@@ -1,5 +1,5 @@
-#ifndef __M_DO_EXT_H_
-#define __M_DO_EXT_H_
+#ifndef M_DO_EXT_H_
+#define M_DO_EXT_H_
 
 #include "JSystem/J3DGraphAnimator/J3DAnimation.h"
 #include "JSystem/JKernel/JKRExpHeap/JKRExpHeap.h"

include/m_Do/m_Do_graphic/m_Do_graphic.h

@@ -1,5 +1,5 @@
-#ifndef __M_DO_GRAPHIC_H__
-#define __M_DO_GRAPHIC_H__
+#ifndef M_DO_GRAPHIC_H_
+#define M_DO_GRAPHIC_H_
 
 #include "global.h"
 

include/m_Do/m_Do_machine/m_Do_machine.h

@@ -1,5 +1,5 @@
-#ifndef __M_DO_MACHINE_H__
-#define __M_DO_MACHINE_H__
+#ifndef M_DO_MACHINE_H_
+#define M_DO_MACHINE_H_
 
 #include "global.h"