Essentially we want to be able to separate low-level socket code
for eg. TCP vs. UDS, from Protocol handling: eg. WebSocketHandler
and client sessions themselves which handle and send messages
which now implement the simple MessageHandlerInterface.
Some helpful renaming too:
s/SocketHandlerInterface/ProtocolHandlerInterface/
Change-Id: I58092b5e0b5792fda47498fb2c875851eada461d
Reviewed-on: https://gerrit.libreoffice.org/c/online/+/90138
Tested-by: Jenkins CollaboraOffice <jenkinscollaboraoffice@gmail.com>
Reviewed-by: Michael Meeks <michael.meeks@collabora.com>