Fix compiler warning with Keyboard.set_modifier

teensy3/usb_keyboard.h

         size_t write(int n) { return write((uint8_t)n); }
 	using Print::write;
 	void write_unicode(uint16_t n) { usb_keyboard_write_unicode(n); }
-	void set_modifier(uint8_t c) { keyboard_modifier_keys = c; }
+	void set_modifier(uint16_t c) { keyboard_modifier_keys = (uint8_t)c; }
 	void set_key1(uint8_t c) { keyboard_keys[0] = c; }
 	void set_key2(uint8_t c) { keyboard_keys[1] = c; }
 	void set_key3(uint8_t c) { keyboard_keys[2] = c; }

usb_disk/usb_api.cpp

 
 
 
-void usb_keyboard_class::set_modifier(uint8_t c)
+void usb_keyboard_class::set_modifier(uint16_t c)
 {
-	keyboard_report_data[0] = c;
+	keyboard_report_data[0] = (uint8_t)c;
 }
 void usb_keyboard_class::set_key1(uint8_t c)
 {

usb_disk/usb_api.h

 #endif
 	using Print::write;
 	void write_unicode(uint16_t unicode) { write_keycode(unicode_to_keycode(unicode)); }
-	void set_modifier(uint8_t);
+	void set_modifier(uint16_t);
 	void set_key1(uint8_t);
 	void set_key2(uint8_t);
 	void set_key3(uint8_t);

usb_hid/usb_api.cpp

 
 
 
-void usb_keyboard_class::set_modifier(uint8_t c)
+void usb_keyboard_class::set_modifier(uint16_t c)
 {
-	keyboard_report_data[0] = c;
+	keyboard_report_data[0] = (uint8_t)c;
 }
 void usb_keyboard_class::set_key1(uint8_t c)
 {

usb_hid/usb_api.h

 	virtual size_t write(uint8_t);
 	using Print::write;
 	void write_unicode(uint16_t unicode) { write_keycode(unicode_to_keycode(unicode)); }
-	void set_modifier(uint8_t);
+	void set_modifier(uint16_t);
 	void set_key1(uint8_t);
 	void set_key2(uint8_t);
 	void set_key3(uint8_t);

usb_serial_hid/usb_api.cpp

 
 
 
-void usb_keyboard_class::set_modifier(uint8_t c)
+void usb_keyboard_class::set_modifier(uint16_t c)
 {
-	keyboard_report_data[0] = c;
+	keyboard_report_data[0] = (uint8_t)c;
 }
 void usb_keyboard_class::set_key1(uint8_t c)
 {

usb_serial_hid/usb_api.h

 #endif
 	using Print::write;
 	void write_unicode(uint16_t unicode) { write_keycode(unicode_to_keycode(unicode)); }
-	void set_modifier(uint8_t);
+	void set_modifier(uint16_t);
 	void set_key1(uint8_t);
 	void set_key2(uint8_t);
 	void set_key3(uint8_t);