Added scripts to test envsetup itself

20.Envsetup_dev/1.Shell_fake_action/0_setup.sh

+#!/bin/bash
+source ../../global-conf.sh
+
+echo "Working dir: \"$(pwd)\"."
+
+if test -z "${ENVSETUP_BRANCH}"; then
+	echo "Test failed, the configuration \"ENVSETUP_BRANCH\" is empty."
+	exit 1
+fi
+
+echo "Branch is \"${ENVSETUP_BRANCH}\"."
+echo -e "${GREEN}Test OK.${NC}"

20.Envsetup_dev/2.Python_fake_action/0_setup.py

+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+import os
+
+import utils
+
+
+def setup(interactive=True):
+    # retrieve a configuration attribute to test it
+    utils.log('Working dir: "%s".' % os.getcwd())
+    branch = utils.get_conf('ENVSETUP_BRANCH')
+    utils.log('Branch is "%s".' % branch)
+    utils.success('Test OK.')

30.Deprecated/1.Fake_actions_to_test_envsetup/0_setup.sh

-#!/bin/bash
-pwd