Update server.xml

Author: gkwan-ibm

start/inventory/src/main/liberty/config/server.xml

@@ -4,6 +4,8 @@
     <feature>jaxrs-2.1</feature>
     <feature>jsonp-1.1</feature>
     <feature>cdi-2.0</feature>
+    <feature>mpOpenTracing-1.1</feature>
+    <feature>usr:opentracingZipkin-0.31</feature>
   </featureManager>
 
   <opentracingZipkin host="localhost"/>