Provisioning: Install pip for macOS 10.12

Pip is required to provision python packages.

Change-Id: I73ab7556bb6b9ccc57ef078f422bfbba4bfed6a7
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

coin/provisioning/common/pip.sh

@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+# Will install pip utility for python
+curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
+sudo python get-pip.py
+rm get-pip.py

coin/provisioning/qtci-macos-10.12-x86_64/025-pip.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+
+BASEDIR=$(dirname "$0")
+$BASEDIR/../common/pip.sh