Add missing fields to Ready (#1227)

* feat(Ready): add shard and application fields

Add missing Shard and Application fields to Ready event struct.

* feat(Ready): make Shard pointer

Make Shard field pointer to be consistent with the API.

events.go

@@ -39,10 +39,10 @@ type Ready struct {
 	Version         int          `json:"v"`
 	SessionID       string       `json:"session_id"`
 	User            *User        `json:"user"`
+	Shard           *[2]int      `json:"shard"`
+	Application     *Application `json:"application"`
 	Guilds          []*Guild     `json:"guilds"`
 	PrivateChannels []*Channel   `json:"private_channels"`
-
-	// TODO: Application and Shard
 }
 
 // ChannelCreate is the data for a ChannelCreate event.

state.go

@@ -912,6 +912,8 @@ func (s *State) onReady(se *Session, r *Ready) (err error) {
 			Version:     r.Version,
 			SessionID:   r.SessionID,
 			User:        r.User,
+			Shard:       r.Shard,
+			Application: r.Application,
 		}
 
 		s.Ready = ready