Added submodule contents into tree

externals/mbedtls/scripts/apidoc_full.sh

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+#!/bin/sh
+
+# Generate doxygen documentation with a full mbedtls_config.h (this ensures that every
+# available flag is documented, and avoids warnings about documentation
+# without a corresponding #define).
+#
+# /!\ This must not be a Makefile target, as it would create a race condition
+# when multiple targets are invoked in the same parallel build.
+#
+# Copyright The Mbed TLS Contributors
+# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+
+set -eu
+
+CONFIG_H='include/mbedtls/mbedtls_config.h'
+
+if [ -r $CONFIG_H ]; then :; else
+    echo "$CONFIG_H not found" >&2
+    exit 1
+fi
+
+CONFIG_BAK=${CONFIG_H}.bak
+cp -p $CONFIG_H $CONFIG_BAK
+
+scripts/config.py realfull
+make apidoc
+
+mv $CONFIG_BAK $CONFIG_H