[WIP] Remove scripts from coverage for testing

[arnaudbore]

Quick description

Some tests to check codecoverage based on unit tests.

[EmmaRenauld]

Thanks! If possible, let's keep open and rebase on master from time to time.

NOT TO BE MERGED!

[codecov[bot]]

Codecov Report

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

Project coverage is 66.48%. Comparing base (48911be) to head (b579cc8).

:exclamation: Current head b579cc8 differs from pull request most recent head 12222c9. Consider uploading reports for the commit 12222c9 to get more accurate results

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #966 +/- ## ========================================== - Coverage 67.99% 66.48% -1.51% ========================================== Files 397 77 -320 Lines 21396 8478 -12918 Branches 3239 1532 -1707 ========================================== - Hits 14549 5637 -8912 + Misses 5532 2302 -3230 + Partials 1315 539 -776 ``` | [Components](https://app.codecov.io/gh/scilus/scilpy/pull/966/components?src=pr&el=components&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=scilus) | Coverage Δ | | |---|---|---| | [Scripts](https://app.codecov.io/gh/scilus/scilpy/pull/966/components?src=pr&el=component&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=scilus) | `∅ <ø> (∅)` | | | [Library](https://app.codecov.io/gh/scilus/scilpy/pull/966/components?src=pr&el=component&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=scilus) | `66.48% <ø> (ø)` | |

[arnaudbore]

@EmmaRenauld take the lead on this one.