added jenkins build-script for gsi-jenkins

silecs-communication-cpp/jenkins.sh

+#!/bin/sh
+make all CPU=x86_64 -j4 COMMON_MAKE_PATH="$WORKSPACE/../../generics/generic-makefiles" SNAP7_BASE="$WORKSPACE/../snap7/snap7-full" BOOST_HOME="$WORKSPACE/../../generics/boost_1.54.0/boost/1.54.0"