CMS-4623 Implement missing aggregation types

Added tests for existing aggregations
CMS-4623 Implement missing aggregation types

Added tests for existing aggregations
CMS-4044 Remove attachments - Change serialization of content attachments

Serializing as properties
CMS-4044 Remove attachments - Change serialization of content attachments

Cleanup and index config
CMS-4635 Attachments dissapear when manual ordering content

Added missing attachment copy of builder(node)