Add webshop generation

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...op/EK-0060/UNUSED/EK-0060_Czerny_BeatusVir20_Score-19.png

...NUSED/EK-0060_Czerny_BeatusVir20_Score_Instruments-00.png

...NUSED/EK-0060_Czerny_BeatusVir20_Score_Instruments-01.png

...NUSED/EK-0060_Czerny_BeatusVir20_Score_Instruments-02.png

...NUSED/EK-0060_Czerny_BeatusVir20_Score_Instruments-03.png

...0/thumb/EK-0060_Czerny_BeatusVir20_Instrument_ClII-00.png

...0/thumb/EK-0060_Czerny_BeatusVir20_Instrument_CorI-00.png

...060/thumb/EK-0060_Czerny_BeatusVir20_Instrument_VI-00.png

...hop/EK-0060/thumb/EK-0060_Czerny_BeatusVir20_Score-04.png

...hop/EK-0060/thumb/EK-0060_Czerny_BeatusVir20_Score-05.png

...hop/EK-0060/thumb/EK-0060_Czerny_BeatusVir20_Score-16.png

...hop/EK-0060/thumb/EK-0060_Czerny_BeatusVir20_Score-17.png

...0060/thumb/EK-0060_Czerny_BeatusVir20_Score_Choral-00.png

...0060/thumb/EK-0060_Czerny_BeatusVir20_Score_Choral-01.png

webshop/EditionKainhofer_CSVI_01_Products.csv

webshop/EditionKainhofer_CSVI_02_Products_en.csv

webshop/EditionKainhofer_CSVI_03_Productimages.csv

webshop_descriptions.def