common: rabbit refactor

Generalize interface to allow processing of any events, not just
Gitea events.

common/rabbitmq_obs.go

@@ -0,0 +1,20 @@
+package common
+
+type RabbitMQObsBuildStatusProcessor struct {
+	c *RabbitConnection
+}
+
+func (o *RabbitMQObsBuildStatusProcessor) GenerateTopics() []string {
+}
+
+func (o *RabbitMQObsBuildStatusProcessor) Connection() *RabbitConnection {
+	if o.c == nil {
+		o.c = &RabbitConnection{}
+	}
+
+	return o.c
+}
+
+func (o *RabbitMQObsBuildStatusProcessor) ProcessRabbitMessage(msg RabbitMessage) error {
+}
+