Release notes

• Included handling for the new property attribute item which identifies a specific resource inside the JSON payload
• Introduced new user-docs command-line argument for displaying user documentation
• Replaced special characters < and > by single quotes on error messages
• Updated registration cycle (prioritization of topic IDs over payload IDs)
• Removed handling of deprecated formats (e.g., unused protobuf handling)
• Added reason messages for all thing statuses
• Improved configuration handling