add new tusb_int_handler(rhport, in_isr) as common irq handler

update tusb_init() to take rhport and role, defined as macro with optional argument for backward compatible

src/device/usbd.c

@@ -557,7 +557,7 @@ bool tud_task_event_ready(void) {
  *
     int main(void) {
       application_init();
-      tusb_init();
+      tusb_init(0, TUSB_ROLE_DEVICE);
 
       while(1) { // the mainloop
         application_code();