feat: add webrtc-direct multiaddr (#36)

Author: daviddias

Diff for: src/protocols.js

@@ -42,7 +42,8 @@ Protocols.table = [
   [480, 0, 'http'],
   [443, 0, 'https'],
   [477, 0, 'ws'],
-  [275, 0, 'libp2p-webrtc-star']
+  [275, 0, 'libp2p-webrtc-star'],
+  [276, 0, 'libp2p-webrtc-direct']
 ]
 
 Protocols.names = {}

Diff for: test/index.spec.js

@@ -292,6 +292,13 @@ describe('variants', () => {
     expect(addr).to.have.property('buffer')
     expect(addr.toString()).to.equal(str)
   })
+
+  it('webrtc-direct', () => {
+    const str = '/libp2p-webrtc-direct/ip4/127.0.0.1/tcp/9090/http'
+    const addr = multiaddr(str)
+    expect(addr).to.have.property('buffer')
+    expect(addr.toString()).to.equal(str)
+  })
 })
 
 describe('helpers', () => {