Added coloured logs and fixed a concurrency bug in the localpubsub adapter

lib/pubsub/interface.go

@@ -0,0 +1,16 @@
+package pubsub
+
+import "context"
+
+type Message struct {
+	Payload string
+}
+
+type PubSubMessage interface {
+	ReceiveMessage(ctx context.Context) (*Message, error)
+}
+
+type PubSub interface {
+	SubscribeToChannel(channel string) (PubSubMessage, error)
+	PublishToChannel(channel string, message string) error
+}