add wvr_ftdi example

examples/wvr_ftdi/wvr_ftdi.ino

@@ -0,0 +1,28 @@
+#include <wvr_pins.h>
+#include <button_struct.h>
+#include <ws_log.h>
+#include <wvr_ui.h>
+#include <WVR.h>
+#include <midiXparser.h>
+#include <midi_in.h>
+#include <wav_player.h>
+#include <button.h>
+#include <rpc.h>
+#include <file_system.h>
+#include <wvr_0.3.h>
+#include <gpio.h>
+
+WVR wvr;
+
+void setup() {
+  wvr.useFTDI = true;
+  wvr.useUsbMidi = false;
+  wvr.begin();
+  wvr.wifiIsOn = get_metadata()->wifi_starts_on;
+  log_i("wifi is %s", wvr.wifiIsOn ? "on" : "off");
+}
+
+void loop() {
+  // vTaskDelay(portMAX_DELAY);
+  vTaskDelete(NULL);
+}