include: untangle events.h from the SDK headers.

InternalEvents shouldn't be used anywhere outside the X server itself. Split
up into events.h for opaque typedefs for the events needed by various
headers and eventstr.h for the actual struct definitions.

eventstr.h must only be included by code that requires internal events and
is not part of the SDK.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

include/input.h

@@ -54,6 +54,7 @@ SOFTWARE.
 #include <X11/Xproto.h>
 #include "window.h"     /* for WindowPtr */
 #include "xkbrules.h"
+#include "events.h"
 
 #define DEVICE_INIT	0
 #define DEVICE_ON	1
@@ -96,8 +97,6 @@ SOFTWARE.
 #define RevertToFollowKeyboard	3
 #endif
 
-#include "events.h"
-
 typedef unsigned long Leds;
 typedef struct _OtherClients *OtherClientsPtr;
 typedef struct _InputClients *InputClientsPtr;