Upgrade to metadata for multiple data sources of Metric and Log

[jihyungSong]

Added a value called supported_providers to metadata to display monitoring and logs using multiple data sources for one cloud service resource.

For example,

...
plugin_info:
  metadata:
    supported_providers:
    - aws
    - all

In the meantime, the secret_data passed to the DataSource used the secret_id obtained from the cloud service's collection_info, but now, if there is a secret_id in the metadata of the DataSource, it takes precedence.