pool: emit blocks and txs event on pool.

Signed-off-by: Fedor Indutny <fedor@indutny.com>

lib/bcoin/peer.js

@@ -351,6 +351,7 @@ Peer.prototype._handleInv = function handleInv(items) {
   if (txs.length === 0)
     return;
 
+  this.emit('txs', txs);
   this.getData(txs);
 };
 

lib/bcoin/pool.js

@@ -314,6 +314,14 @@ Pool.prototype._addPeer = function _addPeer(backoff) {
   peer.on('addr', function(addr) {
     self.emit('addr', addr);
   });
+
+  peer.on('blocks', function(blocks) {
+    self.emit('blocks', blocks);
+  });
+
+  peer.on('txs', function(txs) {
+    self.emit('txs', txs);
+  });
 };
 
 Pool.prototype._removePeer = function _removePeer(peer) {