Restructured javadocs build to make groupings more manageable in the light of mavan-javadoc-plugin's silly treatment of package lists.

Change-Id: I771db3399bf8f0463927b2720ff43f862d7f2d68
diff --git a/docs/internal-test-apps b/docs/internal-test-apps
new file mode 100644
index 0000000..bc5276c
--- /dev/null
+++ b/docs/internal-test-apps
@@ -0,0 +1,7 @@
+org.onosproject.metrics.*
+org.onosproject.demo*
+org.onosproject.election*
+org.onosproject.distributedprimitives*
+org.onosproject.intentperf*
+org.onosproject.messagingperf*
+org.onosproject.optical.testapp*