This is improvement of functional test of
prometheus plugin. By this fix, the created
prometheus rule files are checked by promtool.
If the syntax of them are invalid, the test fails.
This check is disabled by default and enabled when
CONF.prometheus_plugin.test_rule_with_promtool
is true.
Implements: blueprint support-auto-lcm
Change-Id: Ica331befe225156c607d5c8267462b7281669c91