[修改] 增加freeRTOS

1. 版本FreeRTOSv202212.01，命名为kernel；

kernel/FreeRTOS-Plus/ThirdParty/mbedtls/programs/hash/hello.c

@@ -0,0 +1,64 @@
+/*
+ *  Classic "Hello, world" demonstration program
+ *
+ *  Copyright The Mbed TLS Contributors
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#include "mbedtls/build_info.h"
+
+#if defined(MBEDTLS_PLATFORM_C)
+#include "mbedtls/platform.h"
+#else
+#include <stdlib.h>
+#include <stdio.h>
+#define mbedtls_printf       printf
+#define mbedtls_exit         exit
+#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
+#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
+#endif
+
+#if defined(MBEDTLS_MD5_C)
+#include "mbedtls/md5.h"
+#endif
+
+#if !defined(MBEDTLS_MD5_C)
+int main( void )
+{
+    mbedtls_printf("MBEDTLS_MD5_C not defined.\n");
+    mbedtls_exit( 0 );
+}
+#else
+
+
+int main( void )
+{
+    int i, ret;
+    unsigned char digest[16];
+    char str[] = "Hello, world!";
+
+    mbedtls_printf( "\n  MD5('%s') = ", str );
+
+    if( ( ret = mbedtls_md5( (unsigned char *) str, 13, digest ) ) != 0 )
+        mbedtls_exit( MBEDTLS_EXIT_FAILURE );
+
+    for( i = 0; i < 16; i++ )
+        mbedtls_printf( "%02x", digest[i] );
+
+    mbedtls_printf( "\n\n" );
+
+    mbedtls_exit( MBEDTLS_EXIT_SUCCESS );
+}
+#endif /* MBEDTLS_MD5_C */