CI: Initial commit for moving CI into source repo

Create tests/CI directory and add files used by Jenkins to
build and test Asterisk.

With this commit, Jenkins will run the Asterisk Unit Tests using
the Jenkinsfile at tests/CI/unittests.jenkinsfile.  Bash scripts
to do the actual building and testing are also in the same directory.
Output is placed in tests/CI/output so that directory has been
added to .gitignore.

Change-Id: I9448065465e6de2b878634510ace8fd1ef378608

tests/CI/installAsterisk.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+MAKE=`which make`
+if [ x"${@}" != x ] ; then
+	mkdir -p "${@}"
+fi
+destdir=${@:+DESTDIR=${@}}
+
+${MAKE} ${destdir} install || ${MAKE} ${destdir} NOISY_BUILD=yes install || exit 1
+${MAKE} ${destdir} samples
+if [ -n "${@}" ] ; then
+	sed -i -r -e "s@\[directories\]\(!\)@[directories]@g" $@/etc/asterisk/asterisk.conf
+	sed -i -r -e "s@ /(var|etc|usr)/@ ${@}/\1/@g" $@/etc/asterisk/asterisk.conf
+fi
+
+set +e
+chown -R jenkins:users ${@}/var/lib/asterisk
+chown -R jenkins:users ${@}/var/spool/asterisk
+chown -R jenkins:users ${@}/var/log/asterisk
+chown -R jenkins:users ${@}/var/run/asterisk
+chown -R jenkins:users ${@}/etc/asterisk
+[ ! -d ${@}/tmp/asterisk-jenkins ] && mkdir ${@}/tmp/asterisk-jenkins
+chown -R jenkins:users ${@}/tmp/asterisk-jenkins
+ldconfig