Support for Gaia ID in other functionalities

[henrysky]

Currently the support of Gaia ID is limited in other functionalities like displaying star name. The fact that Hipparcos and Gaia ID will not overlap means one can just check if the number specify in the file is larger than the possible Hipparcos ID to infer that is a Gaia ID. And current column for Hipparcos in data files can be mixed with Gaia ID directly.

So far, I have added Eta Carinae (Gaia DR3 5350358584482202880) as a test and added support for Gaia ID to asterism.

cross-id.dat is updated to include all SAO stars with their corresponding Gaia DR3, HD, HR if no already in the file.

Fixes #4043
Fixes #633

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[github-actions]

Great PR! Please pay attention to the following items before merging:

Files matching src/**/*.cpp:

• Are possibly unused includes removed?

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[gzotti]

Interesting, I had not realized there was no overlap. So Gaia numbers start with a higher number than the highest HIP? This may make things easier. @sushoff, @10110111 this may also be important for any Skyculture definitions!

[henrysky]

Interesting, I had not realized there was no overlap. So Gaia numbers start with a higher number than the highest HIP? This may make things easier. @sushoff, @10110111 this may also be important for any Skyculture definitions!

There is no official start number of Gaia but practically the lowest Gaia source id is 4295806720 for DR3 in the whole DR3 catalog (not just stellarium). In order for a Gaia star in any data release to even has a source id lower than 34359738368, it need to fall within a specific area 0.7 arcmin2 of the sky. Hence I think it is safe to say the lowest Gaia source in the future data relase will bigger than the biggest HIP id.

I have updated the cross-id.dat to include all SAO stars if not already in the file. I think this PR is ready to be reviewed.