sceNpMatching2SignalingGetConnectionStatus reports every member inactive
for a known context, since no room is joined offline, and leaves the peer
address and port untouched; a null status pointer throws.
sceNpMatching2AbortContextStart returns NOT_INITIALIZED before
initialization and 0 afterwards. Checks follow shadPS4, with RPCS3's
differences recorded in the technical debt entry.
The context calls, the callback registrations and
SetDefaultRequestOptParam threw. They now follow shadPS4's checks and
context ids, ContextStart returns SCE_NET_ERROR_RESOLVER_ETIMEDOUT, the
answer shadPS4 records for a console without internet access, and
Terminate releases the contexts.