First version of proposed handling of original data

bob/bio/base/preprocessor/Filename.py

bob/bio/base/preprocessor/Preprocessor.py

bob/bio/base/script/preprocess.py

bob/bio/base/test/dummy/database.py

bob/bio/base/test/test_preprocessor.py

bob/bio/base/tools/FileSelector.py

bob/bio/base/tools/preprocessor.py