new unpacker for the trd2d.v06.24 data format

Extension of the FASP data unpacker. The unpacker support both the old (legacy) format used until 03.2024 and the new data format (valid from 06.2024) shipped with new FASPRO HW/FW. The following is a list of changes:

• the bit meaning in the FASP word (32bit) was reordered
• the need for a second loop on the digi to reasign ADC values was removed (still kelp in the code for backward compatibility) so the code is much simpler.