feature: support parsing Norway (Banenor) kmm2 format#15
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Norway files are identified by a "NorKmmToKmm" token in the VER header and store WGS84 lat/lon in the coordinate columns instead of SWEREF99 TM northing/easting. read_kmm2 now detects this and converts lat/lon to northing/easting on read, so the rest of the pipeline (sync + geodetic) behaves identically to Swedish files. Also adds revert_banenor_kmm2.py, which reverses the earlier SWEREF conversion applied to delivered Norway files, restoring the original lat/lon format (only genuine SWEREF files are reverted). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
FelixAbrahamsson
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Norway files are identified by a "NorKmmToKmm" token in the VER header and store WGS84 lat/lon in the coordinate columns instead of SWEREF99 TM northing/easting. read_kmm2 now detects this and converts lat/lon to northing/easting on read, so the rest of the pipeline (sync + geodetic) behaves identically to Swedish files.
Also adds revert_banenor_kmm2.py, which reverses the earlier SWEREF conversion applied to delivered Norway files, restoring the original lat/lon format (only genuine SWEREF files are reverted).