add pitchfork in default config for docker

Author: Ashish

docker/default.conf

@@ -29,4 +29,26 @@ agents {
       }
     }
   }
+
+  pitchfork {
+    enabled = false
+    port = 9411
+    http.threads {
+       max = 16
+       min = 2
+    }
+    idle.timeout.ms = 60000
+    stop.timeout.ms = 30000
+    accept.null.timestamps = false
+    max.timestamp.drift.sec = -1
+    
+    dispatchers {
+      kafka {
+        bootstrap.servers = "kafkasvc:9092"
+        producer.topic = "proto-spans"
+        buffer.memory = 1048576
+        retries = 2
+      }
+    }
+  }
 }