Sinusoidal example

[lm2612]

This will close issue #283 on reproducibility of sinusoid example

Content

• random number generator rng saved and re-opened between each script (calibrate.jl, emulate.jl, sample.jl) so that running the example scripts gives same results as running the tutorial. This changed some of the plots and numbers.
• Missing imports Statistics and Distributions added
• Emulator had some missing definitions (init_sample, input_dim, ...) and typo emulator->emulator_gp. See preview here

---

• [ ] I have read and checked the items on the review checklist.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 88.26%. Comparing base (a621a04) to head (f7ea64d). Report is 20 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #287 +/- ## ========================================== + Coverage 88.09% 88.26% +0.16% ========================================== Files 7 8 +1 Lines 1134 1184 +50 ========================================== + Hits 999 1045 +46 - Misses 135 139 +4 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.