Brand-new implementation of Raw->SDigits. One first reconstructs the signal from...

Brand-new implementation of Raw->SDigits. One first reconstructs the signal from raw data. Then it is parametrized according to the mean signal shape. Finally, a SDigit is produced. The procedure is not exact, but it is the best one can do with the insufficient information in the raw-data stream. Anyway, it should be enough for any embedding-related exercises with vzero. The code was test with test/embedding suit of aliroot and gives no technical problems. Sim->Dig->Raw->SDigit->Dig sequence was checked by comparing the reconstructed ESD. Concering the validation of the whole embedding procedure would need some physics case where one can address the quality of the implemented procedure. All this is in discussion with Adam K.