Support multiple patgen levels
Support multiple patgen levels

because it appears to be impossible to do it in a single level when we
reach a certain number of words, even when setting BAD_WEIGHT to a
higher number.

liblouis/liblouis,BueVest/liblouis,BueVest/liblouis,IndexBraille/liblouis,hammera/liblouis,hammera/liblouis,liblouis/liblouis,BueVest/liblouis,hammera/liblouis,IndexBraille/liblouis,liblouis/liblouis,liblouis/liblouis,hammera/liblouis,liblouis/liblouis,BueVest/liblouis,liblouis/liblouis,IndexBraille/liblouis,hammera/liblouis,BueVest/liblouis,BueVest/liblouis,IndexBraille/liblouis,IndexBraille/liblouis,hammera/liblouis