chaintfns: skeleton of first notifier

chainntfs/btcd.go

@@ -0,0 +1,8 @@
+package chainntnfs
+
+type BtcdNotifier struct {
+}
+
+func newBtcdNotifier() (*BtcdNotifier, error) {
+	return nil, nil
+}

chainntfs/chainntfs.go

@@ -7,6 +7,7 @@ package chainntnfs
 //   * direct p2p
 //   * random bitcoin API?
 //   * electrum?
+//   * SPV bloomfilter
 //   * other stuff maybe...
 type ChainNotifier interface {
 }