Introduce Github Actions CI workflow

[Ansuel]

Introduce Github Actions CI workflow to compile test Pull Request and push.

Add simple build test on Windows, build/install/check for MacOs and advanced test with various compile option for Ubuntu.

Signed-off-by: Christian Marangi [email protected]

[Ansuel]

@fyodor you might be interested :D

[Ansuel]

The fun thing is that alone these actions already helped and catch 2 bug/regression while implementing it...

[Ansuel]

An example run on my local fork https://github.com/Ansuel/nmap/actions/runs/8870136052