Add support for accepting 0-RTT in TlsServerHandshaker

This adds support at the crypto handshake layer for supporting 0-RTT TLS
handshakes on the server. Part of this support includes receiving a signal
from the application layer, via a new method
QuicCryptoStream::SetServerApplicationStateForResumption. This method
replaces the previously client-only
QuicCryptoClientStream::OnApplicationState.

Introduce quic 0-rtt tls support, protected by quic_enable_zero_rtt_for_tls

PiperOrigin-RevId: 315331343
Change-Id: Ife83cf526be38bd4f5c8a3de0e6cd4c40be6f7ae
diff --git a/quic/core/quic_crypto_server_stream.h b/quic/core/quic_crypto_server_stream.h
index 3aaf0ef..9ed7764 100644
--- a/quic/core/quic_crypto_server_stream.h
+++ b/quic/core/quic_crypto_server_stream.h
@@ -56,6 +56,8 @@
       const override;
   CryptoMessageParser* crypto_message_parser() override;
   HandshakeState GetHandshakeState() const override;
+  void SetServerApplicationStateForResumption(
+      std::unique_ptr<ApplicationState> state) override;
   size_t BufferSizeLimitForLevel(EncryptionLevel level) const override;
 
   // From QuicCryptoHandshaker