Renamed datagrid and datastore packages

net.onrc.onos.datagrid.* => net.onrc.onos.core.datagrid.*
net.onrc.onos.datastore.* => net.onrc.onos.core.datastore.*

Change-Id: Ibe1894a6fabae08ea7cfcbf6595f0c91b05ef497
diff --git a/conf/findbugs/exclude.xml b/conf/findbugs/exclude.xml
index 7fe430a..ce20793 100644
--- a/conf/findbugs/exclude.xml
+++ b/conf/findbugs/exclude.xml
@@ -7,7 +7,7 @@
           (under build and reporting)
      -->
      <Match>
-       <Class name="~net.onrc.onos.datastore.RCProtos(.*)?" />
+       <Class name="~net.onrc.onos.core.datastore.RCProtos(.*)?" />
      </Match>
      <Match>
        <Class name="~.*edu\.stanford\..*"/>