Deprecated pm.ConstantData and pm.MutableData are used throughout examples

[avm19]

Notebook title: [multiple notebooks]
Notebook url: [multiple notebooks]

Issue description

Many examples (e.g. How-to: ModelBuilder) contain references to old classes pm.ConstantData and pm.MutableData, which prevent the code from running, unless changed to pm.Data.

See GitHub search results.

Expected output

N/A

Proposed solution

Update all examples in this repo in a single PR.