[MAINT]: Add tests back to the wheel

[echedey-ls]

Addressing @adriesse's comment:

#15 (comment)

I discourage against including them, branch main allows a place for test data that an end-user wouldn't need in their installs. Source always has the tests, so even in the rare case somebody needs them, they can extract the project from source distro. It's also fairly true that for the current size of the tests & their data (100kB), it's impact is negligible in download/install time.

It's up to you whether or not to merge this PR.

EDIT: you can revert back whenever you want, that's why I've made this stand-alone PR for that.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

[adriesse]

Addressing @adriesse's comment:

#15 (comment)

I discourage against including them, branch main allows a place for test data that an end-user wouldn't need in their installs. Source always has the tests, so even in the rare case somebody needs them, they can extract the project from source distro. It's also fairly true that for the current size of the tests & their data (100kB), it's impact is negligible in download/install time.

There is a blurry distinction between examples and tests. At this point neither are adequate in this repo but for the time being they support each other!

EDIT: you can revert back whenever you want, that's why I've made this stand-alone PR for that.

Good idea!