feat(boards): add ESP32-32E-4 (4" ST7796) board support

boards/esp32-32e-4/secrets.h.example

@@ -0,0 +1,11 @@
+#pragma once
+#include <KlubhausCore.h>
+
+// Copy this file to secrets.h and fill in your credentials.
+// secrets.h is gitignored.
+
+static const WiFiCred wifiNetworks[] = {
+    { "Your_SSID_1", "password1" },
+    { "Your_SSID_2", "password2" },
+};
+static const int wifiNetworkCount = sizeof(wifiNetworks) / sizeof(wifiNetworks[0]);