New concept set: PLUM

[bgo-eiu]

I would like to propose a new concept set for PLUM, the fruit, linking these entries together. It can be grouped with the other Agriculture and vegetation concept sets. I can create a pull request for this if approved of.

https://concepticon.clld.org/values/Baroni-2011-200-72

https://concepticon.clld.org/values/Daniel-2021-160-102

https://concepticon.clld.org/values/Miklashevsky-2018-506-366

https://concepticon.clld.org/values/Simko-2020-205-86

https://concepticon.clld.org/values/Speed-2017-485-315

https://concepticon.clld.org/values/Zalizniak-2020-2590-1487

https://concepticon.clld.org/values/Zalizniak-2024-4583-2237