Integration of wikidata --backend

[veyisTurgut]

Description

• Wikidata integration to the project is vital. Currently it's number 1 priority.

Suggestion/Solution

• I will use this as reference.
• Maybe take a look at Group 11 to get inspired.

[veyisTurgut]

UPDATES

• I tried Wikidata Toolkit Library, but encountered lots of errors.
• Also, in the light of recent security problems like Log4j, I implemented my own Wikidata interaction functions. Nothing beats the homebrew!
• This file of of Group 11 helped me a lot. I inspired from their HTTP requests. I will give their credits.
• Will open pr in the upcoming hours.

[veyisTurgut]

Implemented in #419