craft_dxf::parse_recovering reads the tags (ASCII and binary, any code
page), model::Document::read the sections, tables, blocks, layouts and
entity followers, and Entity::read each entity. The pair parser, the
records, the header, layer, block and layout readers and the colour
palette are gone; what stays is the mapping onto VectorCraft art.
Binary DXF files now open instead of being refused. A damaged binary
file says so.