Making number of components configurable using the central component configuration subsystem.

Change-Id: Ia32c51480913689339a766d9849e792d62f7d133
diff --git a/apps/proxyarp/src/main/resources/org/onosproject/proxyarp/ProxyArp.cfgdef b/apps/proxyarp/src/main/resources/org/onosproject/proxyarp/ProxyArp.cfgdef
new file mode 100644
index 0000000..c39bcb4
--- /dev/null
+++ b/apps/proxyarp/src/main/resources/org/onosproject/proxyarp/ProxyArp.cfgdef
@@ -0,0 +1,2 @@
+# Temporary: to be auto-generated in near future
+ipv6NeighborDiscovery|BOOLEAN|false|Enable IPv6 Neighbor Discovery; default is false