Add WikiProject aspect

[carlinmack]

Description

Please include a summary of the change, relevant motivation and context. If possible and applicable, include before and after screenshots and a URL where the changes can be seen.

Created a new aspect for WikiProjects. Has panels for items maintained by the WikiProject and items on the focus list of the WikiProject

I have also added a new function get_prop_value to query.py, which for a given QID and property, returns the value of the (Q, property, value) (where the value is also a QID. This is used to return the main subject.

Caveats

Please list anything which has been left out of this PR or which should be considered before this PR is accepted
Check any of the following which apply:

• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
  • I have made corresponding changes to the documentation
• This change requires new dependencies (please list)

If you make changes to the Python code

• My code passes the tox check, I can receive warnings about tests, documentation or both

Testing

Please describe the tests that you ran to verify your changes. Provide instructions, so we can reproduce. Please also list any relevant details for your test configuration.

• If there are no items maintained by the wikiproject:

Checklist

• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• I have not used code from external sources without attribution
• I have considered accessibility in my implementation
• There are no remaining debug statements (print, console.log, ...)

CC @Daniel-Mietchen

[carlinmack]

Will consider adding panels suggested here #1853

[Daniel-Mietchen]

Will consider adding panels suggested here #1853

Yes, please do. Note that the second panel would give better results for P6104 instead of P5008, as per this comment.

[carlinmack]

Daniel, if you look at the image you will see that I already use both P6104 and P5008 :)

[carlinmack]

Once Shex schemas are queryable via SPARQL (coming soon) I'll try add a panel which shows the coverage of the schema properties for the relevant items.

[carlinmack]

Added panels from a selection of the panels of the topic aspect:

[carlinmack]

Had a call with Daniel where we worked on this aspect and he suggested using P6104/P5008 maintained by/focus list rather than getting the P921 main subject for the item. I think I'll remove get_prop_val in this case

[fnielsen]

Let me know when you are finished.

[carlinmack]

Removed the unused function, now ready to merge :) @fnielsen

[fnielsen]

https://scholia.toolforge.org/wikiproject/Q56241615