32-bit linux build scripts
This adds build scripts for base, lib-argenv, lib-dynamics, and lib-platform for x86 linux.
- Remove custom branches from sources in clean-base after https://gitlab.science.ru.nl/clean-compiler-and-rts/compiler/-/merge_requests/15, https://gitlab.science.ru.nl/clean-compiler-and-rts/run-time-system/-/merge_requests/3, https://gitlab.science.ru.nl/clean-compiler-and-rts/code-generator/-/merge_requests/2, and clm!8 (merged) are merged.
I'd also like to add:
- lib-graphcopy (depends on clean-libraries!7 (merged))
These require some more work: