Add xz.sh provisioning script for macOS 10.12

Task-number: QTQAINFRA-1091
Change-Id: I5594ae5591ad0b092ed000da8930972475163f51
Reviewed-by: Heikki Halmet <heikki.halmet@qt.io>

coin/provisioning/qtci-macos-10.12-x86_64/015-xz.sh

+#!/bin/bash
+
+#############################################################################
+##
+## Copyright (C) 2017 The Qt Company Ltd.
+## Contact: http://www.qt.io/licensing/
+##
+## This file is part of the provisioning scripts of the Qt Toolkit.
+##
+## $QT_BEGIN_LICENSE:LGPL21$
+## Commercial License Usage
+## Licensees holding valid commercial Qt licenses may use this file in
+## accordance with the commercial license agreement provided with the
+## Software or, alternatively, in accordance with the terms contained in
+## a written agreement between you and The Qt Company. For licensing terms
+## and conditions see http://www.qt.io/terms-conditions. For further
+## information use the contact form at http://www.qt.io/contact-us.
+##
+## GNU Lesser General Public License Usage
+## Alternatively, this file may be used under the terms of the GNU Lesser
+## General Public License version 2.1 or version 3 as published by the Free
+## Software Foundation and appearing in the file LICENSE.LGPLv21 and
+## LICENSE.LGPLv3 included in the packaging of this file. Please review the
+## following information to ensure the GNU Lesser General Public License
+## requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+## http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+##
+## As a special exception, The Qt Company gives you certain additional
+## rights. These rights are described in The Qt Company LGPL Exception
+## version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+# This script installs XZ-Utils
+
+# XZ-Utils are needed for uncompressing xz-compressed files
+
+# shellcheck source=../common/try_catch.sh
+source "${BASH_SOURCE%/*}/../common/InstallPKGFromURL.sh"
+
+PrimaryUrl="http://ci-files01-hki.ci.local/input/mac/macos_10.12_sierra/XZ.pkg"
+AltUrl="http://sourceforge.net/projects/macpkg/files/XZ/5.0.7/XZ.pkg"
+SHA1="f0c1f82ebcffe0bd4b8b57b6a77805db56b2de67"
+DestDir="/"
+
+InstallPKGFromURL "$PrimaryUrl" "$AltUrl" "$SHA1" "$DestDir"
+
+echo "XZ = 5.0.7" >> ~/versions.txt