This change makes a couple changes to the CI workflow:
- Adds more compiler coverage:
- gcc to MacOS (see note below)
- 32 and 64bit gcc and clang to Windows
- With more builds, this separates them into per-OS workflow YAMLs
(laying the foundation for more build environments: BSD? DOS? ... )
- Moves all functional commands from GitHub-syntax-YAML into scripts,
which (besides eliminating repeated code), now serve a dual-purpose
of being runnable outside of GitHub.
- One script takes care of listing dependent packages for the given
runtime environment
- Another script takes care of configuring and building
These scripts can be leveraged by a nightly build & asset generator in
the future.
Note: adding GCC to MacOS is now "correct" from a build perspective,
however to keep this PR focussed on the CI workflow I have not included
the coreMIDI / AppleBlocks code-fixes here (so for now, the gcc macOS
builds will fail; we will merge the coreMIDI / AppleBlocks later
depending on how upstream wants to handle it).
