Duplicate templates in same namespace is valid use case

Added MR and disabled logging warning "Found multiple files for the", seems it's not wide issue, patch is enough :)

Attached a patch which allows sites to opt out of the warning using their settings.php file:

// Don't attempt to track duplicate templates.
$settings['components_ignore_duplicate_templates'] = TRUE;

Or on the theme/module level:

components:
  # Ignore duplicate templates.
  ignore_duplicate_templates: true

This still requires tests to be implemented, but works for my use case. So feedback is more than welcome on the current implementation.