- changed the CI to use prebuild nimble binary and to use lock file.
- the nim version is determined by the lock file
- there were some packages that have version range but at the same time
corresponding versions were not tagged at the repo. I have hardcoded the version
of the package commit. Later when the version is tagged in the source repo the
version range can be returned.
Add CI workflow to run tests.
Add code coverage workflow that publishes results to CodeCov.
Add CI and coverage badges to README.
Bump asynctest to allow for `setupAll` and `teardownAll`.
Add local coverage nimble task.
Combine tests in to a testAll file.
