Write a short vignette showing how to fit a ZOIB model with sdmTMB

[seananderson]

See discussion #440 started by @qwduan

• Simulate some data
• Fit the 3 models
• Show combining them to come up with the overall prediction
• Show doing that with uncertainty via nsim
• A description to work from: https://esajournals.onlinelibrary.wiley.com/doi/full/10.1002/ecs2.2600

[seananderson]

@qwduan I started this: https://github.com/pbs-assess/sdmTMB/blob/main/scratch/zoib.Rmd

I'll add text around the code and make it a rendered vignette, but that might get you started.

[qwduan]

Huge thanks! Super helpful!