add "keyword" category to all atlas elements

[lzehl]

@aeidi89 could you take this over or do you need help with this?

[UlrikeS91]

Looking (slowly but steadily) trough issues and PR. I can fix this one, but it would be great to agree on which elements are meant.

schema	keyword?	argument
annotation	no	concept schema & atlas annotation should not get the category
atlas annotation	no	only ever embedded
brain atlas	yes
brain atlas version	yes
common coordinate space	yes?
common coordinate space version	yes?
parcellation entity	yes
parcellation entity version	yes
parcellation terminology	no	only ever embedded
parcellation terminology version	no	only ever embedded

Does that make sense? And what about the non-atlas elements?

schema	keyword?	argument
customAnatomicalEntity	yes?
custom annotation	no?
custom coordinate space	no?

[lzehl]

I need more context. I do not understand what is meant here

[lzehl]

do you mean you want to have e.g. the term "brain atlas" as a structured keyword for other datasets or do you want to have e.g. "WHSSD Atlas" as potential keyword?

The latter I would not like to support. The purpose / usage of atlas elements should be defined through "inputData" for BAs, BAVs, CCSs, CCSVs,in DSVs or through study targets for PEs, CAEs, or PEVs. For the first we can discuss how to register this best.

[UlrikeS91]

I just interpreted the issue, no request from my side for anything specific. The way I understood this issue was that all atlas schemas should receive this:

{
  "_categories": [
    "keyword"
  ]
}

I this is not what was meant, I need some more information. But if that is what was meant, I was trying to figure out which atlas schemas should in fact receive the category.

Does that make more sense?

[lzehl]

If that was the suggestion then I would disagree with adding this category to any atlas schemas or at least would like to further discuss this.