Certificate verification fails on Windows native build about quiche HOT 2 CLOSED

One path of research suggests this used to be a problem for rustup. They had a mini crate that could attempt to load certs manually from the platform store and then manually populate the store object used by SSL library. The code for windows is here, https://github.com/rust-lang/rustup.rs/blob/27fccd3500321ee66da77589d3f4a65fcc7bddfb/src/ca-loader/src/sys/windows.rs

Based on that example, you'd do something like below in quiche's tls.rs, which would require exposing a few new functions

let bundle = CertBundle::new();
let store = X509_STORE_new();
for cert in bundle {
    X509_STORE_add_cert(store, cert);
}

from quiche.

I have a working PoC for this. Needs some tidy up but I can create a PR soon.

from quiche.