figure wishlist: basic (`nohist`) model

[anne-urai]

• [x] History-dependent chronometric and psychometric functions (already in https://github.com/anne-urai/mouse_history_ddm/tree/main/figures)
• [ ] As on CCN poster: model comparison between basic (non-history dependent) models e.g. vanilla DDM, collapsing bounds
• [ ] Posterior predictions, model verification etc (think of which plots are the standards)