DatabaseService subsystem: add admin commands, etc.

Change-Id: I24124579f5e0b03ccbf35a03230ae5a7aff95f22
diff --git a/tools/package/config/README b/tools/package/config/README
new file mode 100644
index 0000000..62b758d
--- /dev/null
+++ b/tools/package/config/README
@@ -0,0 +1,2 @@
+onos-config command will copy files contained in this directory to ONOS instances according to cell definition
+