Implement wright map

[p-gw]

We should add wrightmap to the package, a common plot for item response models.

https://www.wrightmap.org/ implements Wright maps for a variety of models in R.

[p-gw]

Since Wright maps are based on parameter estimates of the model, we need a way to fetch them via the AbstractItemResponseModels.jl API.

Related issue: JuliaPsychometrics/AbstractItemResponseModels.jl#1

[p-gw]

Specs

A Makie.Figure containing itemmap and personmap.

• be able to flip direction
• choose plotting styles for components (see below)
• set range of latent dimension
• link axis of components

wright_map(model[, items, persons]; kwargs...)

Item Parameters

Low-level plotting capability as itemmap

• plot as density
• plot as histogram
• plot as item id
• plot as item by parameter scatterplot
• be able to flip direction
• display uncertainty of estimation

item_map(model[, items]; type, direction, kwargs...)

Person parameters

Low-level plotting capability as person_map

• plot as density
• plot as histogram
• be able to flip direction

person_map(model[, persons]; type, direction, kwargs...)