[修改] 增加freeRTOS

1. 版本FreeRTOSv202212.01，命名为kernel；

kernel/FreeRTOS-Plus/ThirdParty/wolfSSL/scripts/ping.test

@@ -0,0 +1,29 @@
+#!/bin/sh
+
+# ping.test
+
+# defaults
+server=www.wolfssl.com
+tries=2
+
+# populate args
+if [ "$#" -gt 1 ]; then
+    tries=$2
+fi
+if [ "$#" -gt 0 ]; then
+    server=$1
+fi
+
+# determine os
+OS="`uname`"
+case $OS in
+    MINGW* | MSYS*) PINGSW=-n ;;
+    *) PINGSW=-c ;;
+esac
+
+# is our desired server there?
+ping $PINGSW $tries $server
+RESULT=$?
+[ $RESULT -ne 0 ] && echo -e "\n\nCouldn't find $server, skipping" && exit 1
+
+exit 0