Density-based Clustering (DBSCAN) and Model-based Clustering (GMMs)

[brendad8]

Closes #5

@kbodwin

Note: unstated dependency dbscan:::predict_frNN()
- This function is found in db_clust.R and predict_helpers.R

[EmilHvitfeldt]

Hello @brendad8 👋

This is a big amount of effort you have put into this, thank you!

Before I give a more thorough review, could you move the code away from {Rfast} to {philentropy} like it is being done in: https://github.com/tidymodels/tidyclust/pull/199/files

[brendad8]

Hello Emil. Just took care of this in the last few commits. Let me know if you need anything from me or have any questions

[kbodwin]

@EmilHvitfeldt - just a heads up, we have two more big PRs headed our way. I'm putting together some documentation about what was added and what are the bigger changes we might need to discuss, I share that as an Issue on here soon! :)

[EmilHvitfeldt]

Thanks for the heads up! I'm gonna try to review what I have Friday, if not then certainly Monday/Tuesday

[EmilHvitfeldt]

overall looking good.
In addition to the requested changes, we need to make sure the GHAs run clean, one thing we need is for you to add the newly added models to _pkgdown.yml

[EmilHvitfeldt]

please also add NEWS bullets in accordance to https://style.tidyverse.org/news.html