Add wikibase integrator

[LizzAlice]

MaRDI Pull Request

Changes:

• wrote functions using wikibaseintegrator for automated wikidata import
• included functionality to create own entities

Instructions for PR review:

• [x] Conceptual Review (Logic etc...)
• [x] Code Review (Review your implementation)
• [x] Checkout (Test changes locally)

close #61

[LizzAlice]

Completely reworking this