Implement parsing of the new format of entry layout.
The MR update code to follow specification spec!6 (merged)
Doing so, it simplify a lot the parsing and the open the path to simplification in the API (which is also done in this PR)
The MR update code to follow specification spec!6 (merged)
Doing so, it simplify a lot the parsing and the open the path to simplification in the API (which is also done in this PR)