Official script to prepare pfsDesign file connecting DBs including targetDB

As we discussed in the last ICS/PFI-MCS telecon, we want to prepare a script to generate pfsDesign with both targets and guide stars for the coming runs. For the previous runs, Martin Reinecke prepared commisioning.py in ETS package and then monodera modified the code and prepared subaru_fiber_allocation_2021nov.py to talk to GaiaDB and targetDB etc. For the next run, we should have an official script to make pfsDesigns to observe in the similar way. We may be able to merge Onodera-san's code to ETS package if possible.