Add podman_image and podman_image_info modules (#55103)

* Add podman_image and podman_image_info modules

* Add integration test for podman_image_info

* Change parameter names per feedback

* Add integration tests for podman_image

lib/ansible/module_utils/podman/common.py

@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+# Copyright (c) 2019 Ansible Project
+# Simplified BSD License (see licenses/simplified_bsd.txt or https://opensource.org/licenses/BSD-2-Clause)
+
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
+
+def run_podman_command(module, executable='podman', args=None, expected_rc=0, ignore_errors=False):
+    if not isinstance(executable, list):
+        command = [executable]
+    if args is not None:
+        command.extend(args)
+    rc, out, err = module.run_command(command)
+    if not ignore_errors and rc != expected_rc:
+        module.fail_json(
+            msg='Failed to run {command} {args}: {err}'.format(
+                command=command, args=args, err=err))
+    return rc, out, err