Add clang-format on/off comments where necessary.

Comments were added in places where INDENT-ON/OFF comments are. Places
like stdlib's asm don't need it as clang-format doesn't try to indent it.

src/events/scancodes_darwin.h

@@ -25,7 +25,7 @@
    - Apple USB keyboard driver source <http://darwinsource.opendarwin.org/10.4.6.ppc/IOHIDFamily-172.8/IOHIDFamily/Cosmo_USB2ADB.c>
    - experimentation on various ADB and USB ISO keyboards and one ADB ANSI keyboard
 */
-/* *INDENT-OFF* */
+/* *INDENT-OFF* */ /* clang-format off */
 static const SDL_Scancode darwin_scancode_table[] = {
     /*   0 */   SDL_SCANCODE_A,
     /*   1 */   SDL_SCANCODE_S,
@@ -156,4 +156,4 @@ static const SDL_Scancode darwin_scancode_table[] = {
     /* 126 */   SDL_SCANCODE_UP,
     /* 127 */   SDL_SCANCODE_POWER
 };
-/* *INDENT-ON* */
+/* *INDENT-ON* */ /* clang-format on */

src/events/scancodes_linux.h

@@ -24,7 +24,7 @@
    Sources:
    - Linux kernel source input.h
 */
-/* *INDENT-OFF* */
+/* *INDENT-OFF* */ /* clang-format off */
 static SDL_Scancode const linux_scancode_table[] = {
     /*  0 */    SDL_SCANCODE_UNKNOWN,
     /*  1 */    SDL_SCANCODE_ESCAPE,
@@ -260,4 +260,4 @@ static SDL_Scancode const linux_scancode_table[] = {
     /*  235 */    SDL_SCANCODE_UNKNOWN, /* KEY_DOCUMENTS */
     /*  236 */    SDL_SCANCODE_UNKNOWN, /* KEY_BATTERY */
 };
-/* *INDENT-ON* */
+/* *INDENT-ON* */ /* clang-format on */

src/events/scancodes_windows.h

@@ -23,7 +23,7 @@
 /* Windows scancode to SDL scancode mapping table */
 /* derived from Microsoft scan code document, http://download.microsoft.com/download/1/6/1/161ba512-40e2-4cc9-843a-923143f3456c/scancode.doc */
 
-/* *INDENT-OFF* */
+/* *INDENT-OFF* */ /* clang-format off */
 static const SDL_Scancode windows_scancode_table[] = 
 { 
 	/*	0						1							2							3							4						5							6							7 */
@@ -52,4 +52,4 @@ static const SDL_Scancode windows_scancode_table[] =
 	SDL_SCANCODE_INTERNATIONAL2,		SDL_SCANCODE_UNKNOWN,		SDL_SCANCODE_UNKNOWN,		SDL_SCANCODE_INTERNATIONAL1,		SDL_SCANCODE_UNKNOWN,	SDL_SCANCODE_UNKNOWN,		SDL_SCANCODE_UNKNOWN,		SDL_SCANCODE_UNKNOWN,	/* 7 */
 	SDL_SCANCODE_UNKNOWN,		SDL_SCANCODE_INTERNATIONAL4,		SDL_SCANCODE_UNKNOWN,		SDL_SCANCODE_INTERNATIONAL5,		SDL_SCANCODE_UNKNOWN,	SDL_SCANCODE_INTERNATIONAL3,		SDL_SCANCODE_UNKNOWN,		SDL_SCANCODE_UNKNOWN	/* 7 */
 };
-/* *INDENT-ON* */
+/* *INDENT-ON* */ /* clang-format on */

src/events/scancodes_xfree86.h

@@ -28,7 +28,7 @@
    Sources:
    - atKeyNames.h from XFree86 source code
 */
-/* *INDENT-OFF* */
+/* *INDENT-OFF* */ /* clang-format off */
 static const SDL_Scancode xfree86_scancode_table[] = {
     /*  0 */    SDL_SCANCODE_UNKNOWN,
     /*  1 */    SDL_SCANCODE_ESCAPE,
@@ -509,4 +509,4 @@ static const SDL_Scancode xvnc_scancode_table[] = {
 
 #endif /* scancodes_xfree86_h_ */
 
-/* *INDENT-ON* */
+/* *INDENT-ON* */ /* clang-format on */