HBASE-23007 UnsatisfiedLinkError when using hbase-shaded packages under linux (#604)

* Added jackson dependencies for WebHdfs.

(Differs from branch-2 because we didn't have a bare relocation rule for "net" here)

Signed-off-by: Sean Busbey <busbey@apache.org>
(cherry picked from commit 63db1d6)

Author: meszibalu

hbase-shaded/hbase-shaded-testing-util/pom.xml

@@ -146,6 +146,12 @@
             <type>test-jar</type>
             <scope>compile</scope>
         </dependency>
+        <dependency>
+            <groupId>org.codehaus.jackson</groupId>
+            <artifactId>jackson-jaxrs</artifactId>
+            <version>1.9.13</version>
+            <scope>compile</scope>
+        </dependency>
 
         <dependency>
             <groupId>org.apache.hbase</groupId>