When building directly from the repo (either from a git clone or a
download of the zip of the repository) the version reported is very
misleading because it will not have a version label, suggesting it is
actually a 'release' version when in fact it could be anything.
The ./.ci/calculate-version.sh logic is already setup to delete an
existing ./internal/version.txt during a detected release build, so we
can just place one in the repositroy and it won't impact the versioning
of CI and release builds, but will show up when building locally.
Fixes: #63
Had to modify gitignore to add the mingw compilers to begin with. (We ignore them after they're uploaded once, but they need to be in the repo at least once to begin with!)
The repo downloads and then moves the proper compiler into the
c/c_compiler folder, before running setup. This causes github to report
13866 files being altered (deleted) from the repo, as they're no longer
in the set mingw folder...
Adding mingw folders to the ignore list corrects this issue.
