Adding a separate set of modules to serve as an incubator for new core API & implementations.

Change-Id: Ic7df5243ea18dec4f96f47dd2cf922e33827f4de
diff --git a/docs/pom.xml b/docs/pom.xml
index 771e189..b8b1bd2 100644
--- a/docs/pom.xml
+++ b/docs/pom.xml
@@ -59,6 +59,12 @@
                             </packages>
                         </group>
                         <group>
+                            <title>Incubator for Network Model &amp; Services</title>
+                            <packages>
+                                org.onosproject.incubator:org.onosproject.exp.*
+                            </packages>
+                        </group>
+                        <group>
                             <title>Core Subsystems</title>
                             <packages>
                                 org.onosproject.impl:org.onosproject.core.impl:org.onosproject.cluster.impl:org.onosproject.net.device.impl:org.onosproject.net.link.impl:org.onosproject.net.host.impl:org.onosproject.net.topology.impl:org.onosproject.net.packet.impl:org.onosproject.net.flow.impl:org.onosproject.net.*.impl:org.onosproject.event.impl:org.onosproject.net.intent.impl*:org.onosproject.net.proxyarp.impl:org.onosproject.mastership.impl:org.onosproject.net.resource.impl:org.onosproject.json:org.onosproject.json.*:org.onosproject.provider.host.impl:org.onosproject.provider.lldp.impl:org.onosproject.net.statistic.impl:org.onosproject.app.impl:org.onosproject.common.*:org.onosproject.net.group.impl:org.onosproject.cfg.impl:org.onosproject.net.driver.impl:org.onosproject.net.flowobjective.impl:org.onosproject.net.flowext.impl:org.onosproject.net.tunnel.impl
@@ -71,6 +77,12 @@
                             </packages>
                         </group>
                         <group>
+                            <title>Incubator for Core Subsystems &amp; Distributed Stores</title>
+                            <packages>
+                                org.onosproject.exp.net.impl:org.onosproject.exp.store.impl
+                            </packages>
+                        </group>
+                        <group>
                             <title>OpenFlow Providers &amp; Controller</title>
                             <packages>
                                 org.onosproject.provider.of.*:org.onosproject.openflow.*