- Remove CMake file from root folder as it is not needed whats so ever
  for conan to function
- Create a simplified CMake file for the unit tests that does NOT use
  the libhal conan library, which will fix an issue where the unit test
  file locations and line numbers reference the conan folder and not the
  repo folder. This is confusing for developers as they may be using an
  IDE to point to where these errors are and end up editing the files in
  the conan cache rather than the source.
- Add a tests/run.sh file to make executing unit tests easy
- Make test.yml CI use tests/run.sh
- Add test_package/ to test that the libhal library can be used in a
  project without issues. This is a requirement of conan packages.

Issue #405