File name of exported files are always "Flexible Line" #751
Description
When exporting NeTEx files, the file name always comes out as "flexible_line", regardless of the nature of the line.
ℹ️ The progression of NeTEx is tending towards the deprecation of the concept "Flexible Line" at the top level (just LineType: Flexible).
Neither word "line" "flexible line" need to be in the file name, strictly speaking.
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Additionally, the same issue is inside the XML files: Flexible lines.