Add plugins debian packaging

New debian package "vpp-plugins" is created with enabled plugins.

Change-Id: I8920178e8874f12e075858001ec44257dfaf497d
Signed-off-by: Damjan Marion <damarion@cisco.com>

build-root/scripts/find-plugins-contents

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+rm -f $2
+
+for i in ${1}/plugins/lib64/vpp_plugins/*.so; do
+	echo ../${i} /usr/lib/vpp_plugins >> ${2}
+done
+
+for i in ${1}/plugins/lib64/vpp_api_test_plugins/*.so; do
+	echo ../${i} /usr/lib/vpp_api_test_plugins >> ${2}
+done