CSSTUDIO-2487 Add documentation when building the Phoebus package in 'phoebus-product'.

Author: abrahamwolk

phoebus-product/src/assembly/package.xml

@@ -26,6 +26,15 @@
         <include>*.jar</include>
       </includes>
     </fileSet>
+    <fileSet>
+      <directory>${project.parent.basedir}/docs/build/html</directory>
+      <outputDirectory>/doc</outputDirectory>
+      <excludes>
+        <exclude>.doctrees/**</exclude>
+        <exclude>.buildinfo</exclude>
+        <exclude>objects.inv</exclude>
+      </excludes>
+    </fileSet>
     <fileSet>
       <directory>${project.build.directory}/lib</directory>
       <outputDirectory>/lib</outputDirectory>