Add precipiation distribution to general model evaluation

[LisaBock]

Description

In this PR we create a recipe/diagnostic for the precipitation distribution

• Closes #3547

• Link to documentation:

• • *

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Checklist

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• [x] 🛠 This pull request has a descriptive title
• [ ] 🛠 Code is written according to the code quality guidelines
• [ ] 🛠 Documentation is available
• [ ] 🛠 Tests run successfully
• [ ] 🛠 The list of authors is up to date
• [ ] 🛠 Any changed dependencies have been added or removed correctly
• [ ] 🛠 All checks below this pull request were successful

New or updated recipe/diagnostic

• [ ] 🧪 Recipe runs successfully
• [ ] 🧪 Recipe is well documented
• [ ] 🧪 Figure(s) and data look as expected from literature
• [ ] 🛠 Provenance information has been added