New comment by Duncaen on void-packages repository

https://github.com/void-linux/void-packages/issues/14856#issuecomment-569741159

Comment:
Here is the basic idea: https://github.com/Duncaen/void-packages/commit/4d6e68d0101f2bdda367f47c79d5ba5443520e43, its just the shlib part using the map to get the required version for binaries is not done yet.

`test.sh` produces the following:
```
void-packages$ ./test.sh
ERROR: [reposync] failed to fetch file `https://alpha.de.repo.voidlinux.org/current/musl/x86_64-repodata': Not Found
ERROR: [reposync] failed to fetch file `https://alpha.de.repo.voidlinux.org/current/aarch64/x86_64-repodata': Not Found
symbols for 0.1:
/usr/lib/libtestlib.so.0 foo testlib-0.1
ERROR: [reposync] failed to fetch file `https://alpha.de.repo.voidlinux.org/current/musl/x86_64-repodata': Not Found
ERROR: [reposync] failed to fetch file `https://alpha.de.repo.voidlinux.org/current/aarch64/x86_64-repodata': Not Found
deps for testbin-0.1:
testlib>=0.1_1
glibc>=2.29_1
ERROR: [reposync] failed to fetch file `https://alpha.de.repo.voidlinux.org/current/musl/x86_64-repodata': Not Found
ERROR: [reposync] failed to fetch file `https://alpha.de.repo.voidlinux.org/current/aarch64/x86_64-repodata': Not Found
symbols for 0.2:
/usr/lib/libtestlib.so.0 foo testlib-0.1
/usr/lib/libtestlib.so.0 bar testlib-0.2
ERROR: [reposync] failed to fetch file `https://alpha.de.repo.voidlinux.org/current/musl/x86_64-repodata': Not Found
ERROR: [reposync] failed to fetch file `https://alpha.de.repo.voidlinux.org/current/aarch64/x86_64-repodata': Not Found
deps for testbin-0.2:
testlib>=0.1_1
glibc>=2.29_1
```