* added get database info to admin service
* refactored code to be inline with standard
* added comments to utils functions
* added comments to public classes
* removed camelcase from request type
* removed the wrapper for the generic dictionary
* removed unnecessary imports
* Add backup database metadata json rpc
* Backup database metadata changes after sync
* Changed request class name to BackupConfigInfo and made other changes
according to comments
* Addressed PR comments