Support automated backup and restore for Core Platform

[sanjayprab]

The current backup/restore implementation is available in early access, but is incomplete and not suitable for production usage. There are many Kubernetes resources from the application namespace missing in this list used for backing up Maximo Application Suite Core Platform

https://github.com/ibm-mas/ansible-devops/blob/master/ibm/mas_devops/roles/suite_backup_restore/tasks/backup-vars.yml

• [ ] Determine the list of resources that should be backed up, document them in this issue
• [ ] Implement & test backup and restore
• [ ] Update the documentation to cover exactly what is included in the backup and restore for this application, including any limitations

Resources to be added to B/R list:

• [ ] Route certificate secrets (potentially only when manual certificate management is enabled?)
• [ ] mas-messages configmap (reported in ticket TS018045570)