Expand 4cat to other languages (Finnish)

[anitabraida]

These are the changes proposed in this pull request:

Wordlists added:

1. Finnish hatespeech wordlist (no offensiveness scores available)
2. Finnish wordlist with common vocabulary

Processors changed:

1. lexical_filter. Added Finnish hatespeech, introduced choice for the user to select the language. If the language selected is a highly inflected one (in this case, Finnish), it gives the user the option to choose between exact word match (present previously) and subword match (added in this pull request).
2. wikipedia_network. Added the option to find Wikipedia links in a Finnish language dataset.
3. neologisms. Added the Finnish wordlist with common vocabulary. The user has now the option to choose either English (default) or Finnish as the language. Pipeline changed accordingly.
4. tokenise. Added Finnish wordlist with common vocabulary for the filter. Added a lemmatization option for Finnish (uses SpaCy).
5. similar_words (presets). Included additional information.

In the setup, SpaCy is included again to allow for lemmatization on Finnish text.

[matnel]

@ErikBorra @stijn-uva Would be lovely if you could check and merge this soonish! :) Please let me know if there are any issues with the code, happy to patch this PR.

[dale-wahl]

@sal-uva you removed spacy last year. I cannot recall or find what the specific issue was and only vaguely remember some dependency problems. Do you recall?

[sal-uva]

@sal-uva you removed spacy last year. I cannot recall or find what the specific issue was and only vaguely remember some dependency problems. Do you recall?

There were some dependency problems (iirc it didn't like our version of NumPy) and because of its resource-heavy nature was only suited for small-scale datasets for (among others) entity recognition, which can now be done much better with LLMs.

But if it's handy for Finnish and it doesn't cause any dependency errors for you, all good to add back in!

[matnel]

I think we did not encounter issues, but happy to test more if that helps - any hints on what to test out?