Print libusb version on --version

app/src/version.c

@@ -6,6 +6,9 @@
 #ifdef HAVE_V4L2
 # include <libavdevice/avdevice.h>
 #endif
+#ifdef HAVE_USB
+# include <libusb-1.0/libusb.h>
+#endif
 
 void
 scrcpy_print_version(void) {
@@ -54,4 +57,11 @@ scrcpy_print_version(void) {
            AV_VERSION_MINOR(avdevice),
            AV_VERSION_MICRO(avdevice));
 #endif
+
+#ifdef HAVE_USB
+    const struct libusb_version *usb = libusb_get_version();
+    // The compiled version may not be known
+    printf(" - libusb: - / %u.%u.%u\n",
+           (unsigned) usb->major, (unsigned) usb->minor, (unsigned) usb->micro);
+#endif
 }