Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20856)
**QCSO:** QUIC Connection SSL Object. This is an SSL object created using
`SSL_new` using a QUIC method.
+**QCTX**: QUIC Context. This is a utility object defined within the QUIC APL
+which helps to unwrap a SSL object pointer (a QCSO or QSSO) into the relevant
+structure pointers such as `QUIC_CONNECTION` or `QUIC_XSO`.
+
**QRL:** QUIC record layer. Refers collectively to the QRX and QTX.
**QRX:** QUIC Record Layer RX. Receives incoming datagrams and decrypts the