[Murugan temp] Adding MQTTS backup support

[MuruganChandrasekar]

71

The changes were made

• Changing the backup report file from / to /tmp
• Adding backup support for mqtts credentials
• Formatting the files
• Updating README.md and SETUP.md
• Adding crontab for mqtts backup

Please have a look at the changes and merge the pull request.

[MuruganChandrasekar]

Thanks for the review!. I've made the requested changes.

Thanks again!