htlcswitch: extend the HtlcSatifiesPolicy to also accept timelock/height info

In this commit, we extend the existing HtlcSatifiesPolicy method to also
accept timelock and height information. This is required as an upcoming
commit will fix an existing bug in the forwarding logic wherein we use
the time lock policies of the incoming node rather than that of the
outgoing node.

htlcswitch/link.go

@@ -1741,7 +1741,9 @@ func (l *channelLink) UpdateForwardingPolicy(newPolicy ForwardingPolicy) {
 //
 // NOTE: Part of the ChannelLink interface.
 func (l *channelLink) HtlcSatifiesPolicy(payHash [32]byte,
-	incomingHtlcAmt, amtToForward lnwire.MilliSatoshi) lnwire.FailureMessage {
+	incomingHtlcAmt, amtToForward lnwire.MilliSatoshi,
+	incomingTimeout, outgoingTimeout uint32,
+	heightNow uint32) lnwire.FailureMessage {
 
 	l.RLock()
 	policy := l.cfg.FwrdingPolicy