This PR compress the debug info in the ELF files built.
This has no impact on the packages (e.g. .deb files) because they themselves have compression, but once installed in the filesystem, they this compression will be beneficial
The compression is opportunistic, happens automatically when possible
For some reason, the web version doesn't work with this (most compiler tests after this seem to fail ?) so it is disabled there
More information: https://github.com/WerWolv/ImHex/issues/1714#issuecomment-2131373826
This PR integrates my libmagic patch into the Dockerfile rather than my
vcpkg fork (so we can use the official vcpkg repository in the future)
That said, we still use my vcpkg fork for now because official vcpkg
fails to compile freetype
