Changes to spektrafilm profiles and LUTs in films/*.bin

Derived from spektrafilm by Andrea Volpato
https://github.com/andreavolpato/spektrafilm
Licensed CC BY-SA 4.0 (see SPEKTRAFILM_LICENSE.txt)
Modified for the Film Pre-exposure app (profiles re-baked, LUTs added).

Baked from spektrafilm 0.3.4 at commit 3bb2c2d2801ff68b92019cf1dbcbb133d60832bc.
Each file holds one film stock's chromaticity table, normalized density curves, density
curves before DIR couplers, and a 41^3 LUT from film density to scanned sRGB,
computed with print stock kodak_portra_endura (negatives) or a direct scan (slides).
Stocks: kodak_ektar_100, kodak_portra_160, kodak_portra_400, kodak_portra_800, kodak_portra_800_push1, kodak_portra_800_push2, kodak_gold_200, kodak_ultramax_400, kodak_vision3_50d, kodak_vision3_250d, kodak_verita_200d, kodak_vision3_200t, kodak_vision3_500t, fujifilm_pro_400h, fujifilm_c200, fujifilm_xtra_400, kodak_ektachrome_100, kodak_kodachrome_64, fujifilm_velvia_100, fujifilm_provia_100f.
