Use unique include for Stream.h

Author: facchinm

drivers/USBKeyboard.h

@@ -19,7 +19,7 @@
 #define USBKEYBOARD_H
 
 #include "USBHID.h"
-#include "Stream.h"
+#include "platform/Stream.h"
 #include "PlatformMutex.h"
 
 /* Modifiers, left keys then right keys. */

drivers/USBMouseKeyboard.h

@@ -24,7 +24,7 @@
 
 #include "USBMouse.h"
 #include "USBKeyboard.h"
-#include "Stream.h"
+#include "platform/Stream.h"
 #include "USBHID.h"
 #include "PlatformMutex.h"
 

drivers/USBSerial.h

@@ -19,7 +19,7 @@
 #define USBSERIAL_H
 
 #include "USBCDC.h"
-#include "Stream.h"
+#include "platform/Stream.h"
 #include "Callback.h"
 
 /**