Add domain types

channel.go

@@ -0,0 +1,17 @@
+package geeksbot
+
+type Channel struct {
+	ID        string
+	Guild     Guild
+	Admin     bool
+	Default   bool
+	NewPatron bool
+}
+
+type ChannelService interface {
+	Channel(id string) (*Channel, error)
+	CreateChannel(c *Channel) (*Channel, error)
+	DeleteChannel(c *Channel) error
+	GuildChannels(g *Guild) ([]*Channel, error)
+	UpdateChannel(c *Channel) (*Channel, error)
+}