Add and remove libs and components for Arduino Core 3 (#400)

* Add and remove libs and components for Arduino Core 3

* Add back NimBLE-Arduino in resources

components/espressif__libsodium/port/randombytes_esp32.c

@@ -0,0 +1,33 @@
+/*
+ * SPDX-FileCopyrightText: 2017-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+#include "sdkconfig.h"
+#if __has_include("esp_random.h")
+#include "esp_random.h"
+#else
+#include "esp_system.h"
+#endif
+#include "randombytes_internal.h"
+
+static const char *randombytes_esp32xx_implementation_name(void)
+{
+    return CONFIG_IDF_TARGET;
+}
+
+/*
+  Plug the ESP32 hardware RNG into libsodium's custom RNG support, as per
+  https://download.libsodium.org/doc/advanced/custom_rng.html
+
+  Note that this RNG is selected by default (see randombytes_default.h), so there
+  is no need to call randombytes_set_implementation().
+*/
+const struct randombytes_implementation randombytes_esp32_implementation = {
+    .implementation_name = randombytes_esp32xx_implementation_name,
+    .random = esp_random,
+    .stir = NULL,
+    .uniform = NULL,
+    .buf = esp_fill_random,
+    .close = NULL,
+};