feat: peer store (#470)

* feat: peer-store v0

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

test/utils/creators/peer.js

@@ -0,0 +1,24 @@
+'use strict'
+
+const PeerId = require('peer-id')
+const PeerInfo = require('peer-info')
+
+const Peers = require('../../fixtures/peers')
+
+module.exports.createPeerInfo = async (length) => {
+  const peers = await Promise.all(
+    Array.from({ length })
+      .map((_, i) => PeerId.create())
+  )
+
+  return peers.map((peer) => new PeerInfo(peer))
+}
+
+module.exports.createPeerInfoFromFixture = async (length) => {
+  const peers = await Promise.all(
+    Array.from({ length })
+      .map((_, i) => PeerId.createFromJSON(Peers[i]))
+  )
+
+  return peers.map((peer) => new PeerInfo(peer))
+}