implement a basic store for new connection IDs

internal/utils/new_connection_id.go

@@ -0,0 +1,12 @@
+package utils
+
+import (
+	"github.com/lucas-clemente/quic-go/internal/protocol"
+)
+
+// NewConnectionID is a new connection ID
+type NewConnectionID struct {
+	SequenceNumber      uint64
+	ConnectionID        protocol.ConnectionID
+	StatelessResetToken *[16]byte
+}