Organize pyproject.toml for instrument-related packages

There was a relatively large refactoring in ics_cobraOps. This requires to use other related packages such as pfs_instdata, ics_cobraCharmer, and ics_fpsActor. These related packages cannot be able to be installed via pip. It would be nice for these packages to have a proper pyproject.toml so that they can be installed via pip. 

Javier mentioned in a GitHub thread about packages that need to be set-up manually, but I think not all of them are needed. For example, ets_pointing and ets_fiberalloc can be installed via pip (though not perfectly, from my experience).

For my application, the following packages should be pip-friendly additionally.

• ics_cobraCharmer
• ics_fpsActor
• pfs_instdata (maybe difficult?)
• spt_oprational_database (if it's imported by the packages above)

I'd like to have the update by the next call for proposals (~Feb 2026; of course earlier is better). 

I have the PFS target uploader in mind, and it would be really great if I can install every dependencies just by

$ pip install .

in a cloned directory of the uploader.