Initial commit with basic project structure and Firebeetle 2 board definition

boards/espressif/esp_wrover_kit/Kconfig.defconfig

@@ -0,0 +1,11 @@
+# ESP-WROVER-KIT board configuration
+
+# Copyright (c) 2021 Espressif Systems (Shanghai) Co., Ltd.
+# SPDX-License-Identifier: Apache-2.0
+
+if BOARD_ESP_WROVER_KIT_ESP32_PROCPU
+
+config DISK_DRIVER_SDMMC
+	default y
+
+endif # BOARD_ESP_WROVER_KIT_ESP32_PROCPU