Merge branch 'amiranda/6-automatically-run-tests-in-pipelines' into 'main'

Resolve "Automatically run tests in  pipelines"

This MR enables automatic testing using `ctest`, and also 
updates the CI pipelines so that they run `build` and `test`
jobs exercising the code. We also add a `Dockerfile` that builds
an appropriate CI environment to build, test, and run Cargo.

Closes #6

Closes #6

See merge request !8