Remove rtg.csv — duplicate of RTG_2abrupt.csv

Remap labels to 0-based contiguous ints; vehicle_sensIT: move label column to end

Split regression/clustering into real/synth; drop synthetic_streams

Unify all datasets to CSV; split classification into real/synth (part 3)

Unify all datasets to CSV; split classification into real/synth (part 2)

Unify all datasets to CSV; split classification into real/synth