consumer/provider에 Authorization타입으로 고정

session/common.go

@@ -3,3 +3,12 @@ package session
 const (
 	communication_channel_name_prefix = "_sess_comm_chan_name"
 )
+
+type Authorization struct {
+	Account string `bson:"a" json:"a"`
+
+	// by authorization provider
+	Platform string `bson:"p" json:"p"`
+	Uid      string `bson:"u" json:"u"`
+	Email    string `bson:"em" json:"em"`
+}