* Automatically detect other common MIPS toolchains, update build dependencies in README

* Swap N64_GCCPREFIX and N64_INST for libdragon toolchain detection

* Migrate CI to Github Actions (#2740)

Changes the CI system from Jenkins to Github Actions (GHA) as discussed on discord.

I tried to adapt the original jenkinsfile as I could.
One major difference from the old system is each version will now be built in parallel instead of sequentially.

Also, the mapfiles will be uploaded as an GHA artifact to the Action workflow. I think having them easily available would be nice.

This specific approach to handle GHA for decomp projects was adapted from the one used by the GC/Wii community. It is documented here https://github.com/encounter/dtk-template/blob/main/docs/github_actions.md
There's a writeup about this adaptation for N64 projects [here](https://github.com/AngheloAlf/drmario64/pull/19).

* Rename generate_patch_from_gha -> gha_fix_bss_and_generate_patch

* Make check formatting always on the full repo

* ruin z_fishing bss for CI testing purposes

* fix not passing VERSION to tools/gha_fix_bss_and_generate_patch.sh

* debugging gha_fix_bss_and_generate_patch.sh

* fix the debugging...

* git config safe.directory

* rm debugging stuff from gha_fix_bss_and_generate_patch.sh

* fix_bss gha-side machinery, attempt 1

* fix1

* fix2

* debug1

* checkout repo in merge_bss_fixes job

* fix3

* fix4

* fix5

* some prettify

* apply_fix_bss_patches.py complete

* fix6

* generate_patch.sh is back

* apply fix bss changes from gha! it works!

* generate_patch.sh suggestion

* ruin bss again for testing

* unruin bss

* Update .github/workflows/format.yml

Co-authored-by: Anghelo Carvajal <angheloalf95@gmail.com>

* update matrix version list

* finalize apply_fix_bss_patches.py

---------

Co-authored-by: Anghelo Carvajal <angheloalf95@gmail.com>

* oot-gc-eu-dbg-proto OK

* add gc-eu-dbg-proto to readme

* mention overdump trimming for all debug roms

* rename gc-eu-dbg-proto to gc-eu-dbg-2

Rationale: first version to make it into decomp (which should also be the first one that surfaces) gets an un-numbered version name, then the second version gets -2, and so on

* gc-eu-dbg OK

* cleanup/fortify makefile and line_numbers.h changes

* fill segments.csv

* add gc-eu-dbg to Jenkinsfile

* cleanup/fortify dmadata_table.h

* add gc-eu-dbg to readme

* fix checksum check and compressed checksum

* Remove libpng from requirements

* Remove unnecessary packages from dockerfile

* Update README

* update binutils and gcc versions in macos build instructions

* git subrepo clone git@github.com:Thar0/com-plugin.git tools/com-plugin

subrepo:
  subdir:   "tools/com-plugin"
  merged:   "e8543312d"
upstream:
  origin:   "git@github.com:Thar0/com-plugin.git"
  branch:   "main"
  commit:   "e8543312d"
git-subrepo:
  version:  "0.4.6"
  origin:   "https://github.com/ingydotnet/git-subrepo"
  commit:   "110b9eb"

* ique-cn OK

* Review suggestions

* Most suggestions

* git subrepo pull tools/com-plugin

subrepo:
  subdir:   "tools/com-plugin"
  merged:   "81595ed1c"
upstream:
  origin:   "git@github.com:Thar0/com-plugin.git"
  branch:   "main"
  commit:   "81595ed1c"
git-subrepo:
  version:  "0.4.6"
  origin:   "https://github.com/ingydotnet/git-subrepo"
  commit:   "110b9eb"

* Fix other versions

* Download ido-recomp compiler binaries instead of committing them

* Skip downloading compilers if ido_recomp/ exists

* Use make instead of bash script

* Add multiversion instructions to README

* Direct users toward Makefile

* Modify options "below" instead of "in the Makefile"

* Reword