Initial addition of GitHub actions

[dgkf-roche]

• Add basic documentation placeholder
• Add basic test suite placeholder
• Adds test, coverage & documentation github actions

I'm not sure how this will all go until an actual package is in place, but this should lay the foundation for these various needs once you get there.

Note you'll need to configure the repo to deploy from the gh-pages branch before it will actually deploy anything.

[dgkf-roche]

Jobs are currently failing because it's looking for src/SafetySignalDetection.jl to load the package. Otherwise I think it should be okay.

ERROR: LoadError: expected the file `src/SafetySignalDetection.jl` to exist for package `SafetySignalDetection` at `/home/runner/work/SafetySignalDetection.jl/SafetySignalDetection.jl`

Once you have a basic module skeleton in place I think it will be okay.

[brockk]

Completing this PR because I completed the other that seemed to be standing in the way of this.

[danielinteractive]

I guess we can reopen this - @brockk I think we should get our GH actions in place, right?

[danielinteractive]

@dgkf-roche Hi Doug, what would be the next steps here?

[dgkf-roche]

@dgkf-roche Hi Doug, what would be the next steps here?

I'll investigate. I've just been able to reproduce it locally with (just copying the relevant lines from the action:

julia --project=docs/ -e 'using Pkg; Pkg.develop(PackageSpec(path = pwd())); Pkg.instantiate(); include("docs/make.jl")'

I'm splitting my time right now between a few different projects, but I'll see if I can find a quick solution to this snag.