Add a vpp-dpdk-dev package, enable plugins to use dpdk APIs directly

Change-Id: I69db06a0b5d5d556c2fd570ea0056bb59d7bc3d6
Signed-off-by: Dave Barach <dave@barachs.net>

build-root/scripts/find-dpdk-contents

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# includes
+rm -rf dpdk-includes
+mkdir dpdk-includes
+(cd $1/dpdk/include; tar cfh - . | (cd ../../../dpdk-includes; tar xf -))
+
+paths=`cd dpdk-includes; find . -type f -print`
+rm -f $2
+
+for path in $paths
+do
+    dir=`dirname $path`
+    if [ $dir = "." ] ; then
+        echo ../dpdk-includes/$path /usr/include/vpp-dpdk >> $2
+    else
+        echo ../dpdk-includes/$path /usr/include/vpp-dpdk/$dir >> $2
+    fi
+done        
+