funding+server.go: modify notifications to pass through server

This modifies the various channelnotifier notification functions
to instead hit the server and then call the notification routine.
This allows us to accurately modify the server's maps.

server.go

@@ -1681,9 +1681,10 @@ func newServer(cfg *Config, listenAddrs []net.Addr,
 		MaxPendingChannels:            cfg.MaxPendingChannels,
 		RejectPush:                    cfg.RejectPush,
 		MaxLocalCSVDelay:              chainCfg.MaxLocalDelay,
-		NotifyOpenChannelEvent:        s.channelNotifier.NotifyOpenChannelEvent,
+		NotifyOpenChannelEvent:        s.notifyOpenChannelPeerEvent,
 		OpenChannelPredicate:          chanPredicate,
-		NotifyPendingOpenChannelEvent: s.channelNotifier.NotifyPendingOpenChannelEvent,
+		NotifyPendingOpenChannelEvent: s.notifyPendingOpenChannelPeerEvent,
+		NotifyFundingTimeout:          s.notifyFundingTimeoutPeerEvent,
 		EnableUpfrontShutdown:         cfg.EnableUpfrontShutdown,
 		MaxAnchorsCommitFeeRate: chainfee.SatPerKVByte(
 			s.cfg.MaxCommitFeeRateAnchors * 1000).FeePerKWeight(),