invoicesrpc+lnrpc: add msat fields to invoices

lnrpc/invoicesrpc/utils.go

@@ -97,6 +97,7 @@ func CreateRPCInvoice(invoice *channeldb.Invoice,
 		Receipt:         invoice.Receipt[:],
 		RHash:           decoded.PaymentHash[:],
 		Value:           int64(satAmt),
+		ValueMsat:       int64(invoice.Terms.Value),
 		CreationDate:    invoice.CreationDate.Unix(),
 		SettleDate:      settleDate,
 		Settled:         isSettled,