[QUIC] Support for OpenSSL build of MsQuic on Windows (Attempt 2) (#72609)
* Initial OpenSSL MsQuic support
* Don't check Windows version when OpenSSL is used
* Update src/libraries/System.Net.Quic/src/System/Net/Quic/Internal/MsQuicApi.cs
Co-authored-by: Marie Píchová <11718369+ManickaP@users.noreply.github.com>
* Gracefully close the API handle before unloading the library
* Minor formatting change
* Update src/libraries/System.Net.Quic/src/System/Net/Quic/Internal/MsQuicApi.cs
Co-authored-by: Marie Píchová <11718369+ManickaP@users.noreply.github.com>
Co-authored-by: Marie Píchová <11718369+ManickaP@users.noreply.github.com>