[FEATURE] Should prompt users in nuke.sh for confirmation before the script proceeds

[Derek Ho]

Describe the bug
In nuke.sh, there should be a prompt(like the one in uninstall.sh) added to give users a chance to confirm before proceeding to clean up...esp nuke is a destructive script like uninstall.sh

To Reproduce
Steps to reproduce the behavior:

1. Run ./nuke.sh
2. No prompt and just proceed

Expected behavior
Added a prompt (from uninstall.sh)

echo "***"
printf "\n"
echo "This script will destroy Open Cluster Management from the current OpenShift target cluster:"
printf "\n"
oc cluster-info | head -n 1 | awk '{print $NF}'
printf "\n"
echo "If you would like to proceed with cleanup, type: DESTROY"
read -r DESTROY_YES
if [ "${DESTROY_YES}" != "DESTROY" ]; then
  echo "You must type DESTROY to clean up the Hive deployed clusters"
  exit 1
fi

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