Patching mariadb_rpl.c and mariadb_rpl.h to recognize (recognize only, no
processing) GTID events and V2 events.

When receiving MYSQL_COM_BINLOG_DUMP , MYSQL_COM_BINLOG_DUMP_GTID or
MYSQL_COM_REGISTER_SLAVE , proxysql automatically switches to fast_forward .
Although it is important to correctly configure "encrypted" in the backend
data stream if needed.
Used PMC-10005 for reference , as this is implemented similarly in many
parts of the code.
During the switch proxy_info() now also reports the client and the
command received.