Add sleuth and zipkin stream dependencies

See gh-187

initializr-service/application.yml

@@ -373,10 +373,22 @@ initializr:
           artifactId: spring-cloud-starter-sleuth
         - name: Zipkin
           id: cloud-starter-zipkin
-          description: Distributed tracing via Zipkin and spring-cloud-sleuth-zipkin
+          description: Distributed tracing with an existing Zipkin installation and spring-cloud-sleuth-zipkin. Alternatively, consider Zipkin Stream and Sleuth Stream.
           versionRange: 1.3.0.M4
           groupId: org.springframework.cloud
           artifactId: spring-cloud-starter-zipkin
+        - name: Sleuth Stream
+          id: cloud-sleuth-stream
+          description: Marshals Spring Cloud Sleuth Spans over a Spring Cloud Stream binder
+          versionRange: 1.3.0.M4
+          groupId: org.springframework.cloud
+          artifactId: spring-cloud-sleuth-stream
+        - name: Zipkin Stream
+          id: cloud-sleuth-zipkin-stream
+          description:  Consumes messages from Spring Cloud Sleuth Stream delivered over a Spring Cloud Stream binder and writes them to a Zipkin store
+          versionRange: 1.3.0.M4
+          groupId: org.springframework.cloud
+          artifactId: spring-cloud-sleuth-zipkin-stream
     - name: Cloud Messaging
       bom: cloud-bom
       versionRange: "1.2.3.RELEASE"
@@ -406,7 +418,7 @@ initializr:
           artifactId: spring-cloud-starter-consul-bus
         - name: Stream Rabbit
           id: cloud-stream-binder-rabbit
-          description: Messaging microservices with RabbitMQ 
+          description: Messaging microservices with RabbitMQ
           versionRange: 1.3.0.M4
           groupId: org.springframework.cloud
           artifactId: spring-cloud-starter-stream-rabbit
@@ -626,4 +638,3 @@ initializr:
     - name: 1.1.12
       id: 1.1.12.RELEASE
       default: false
-