Hi,
I successfully convert the dwg file to geojson but all the attributes are missing.
For example
In my dwg file I have something like this
![image](https://github.com/LibreDWG/libredwg/assets/881327/b672596c-d5d9-462e-91d7-1edbf89721b0)
and in my geojson I cannot see this properties. 
`{
      "type": "Feature",
      "id": "3DA",
      "properties": {
        "SubClasses": "AcDbEntity : AcDbBlockReference",
        "Layer": "UnitDetail",
        "Color": 256,
        "name": "UnitDetail",
        "EntityHandle": "3DA"
      },
      "geometry": {
        "type": "Point",
        "coordinates":         [ 368462.7367884437553585, 2682140.4038846166804433, -0.0044009092129904 ]
      }
    }`
Is there any way to extract this attributes as key value pairs?
Attributes not shown in output file
This is a GitHub Issue
repo:libredwg
owner:LibreDWG
Title : Attributes not shown in output file
Issue date:

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Hi,
I successfully convert the dwg file to geojson but all the attributes are missing.
For example
In my dwg file I have something like this
![image](https://github.com/LibreDWG/libredwg/assets/881327/b672596c-d5d9-462e-91d7-1edbf89721b0)
and in my geojson I cannot see this properties. 
`{
      "type": "Feature",
      "id": "3DA",
      "properties": {
        "SubClasses": "AcDbEntity : AcDbBlockReference",
        "Layer": "UnitDetail",
        "Color": 256,
        "name": "UnitDetail",
        "EntityHandle": "3DA"
      },
      "geometry": {
        "type": "Point",
        "coordinates":         [ 368462.7367884437553585, 2682140.4038846166804433, -0.0044009092129904 ]
      }
    }`
Is there any way to extract this attributes as key value pairs?
--- end body ---
