Set up CI with Azure Pipelines (#1573)

* Set up CI with Azure Pipelines

* test all python versions

* rename test file and set to run from subdir.

tests/test_initialize.py

@@ -0,0 +1,33 @@
+#! /usr/bin/env python
+from __future__ import print_function
+
+import datetime
+import os
+import sys
+sys.path.extend(["..","."])
+
+import eol
+eol.check()
+
+import cleanup
+cleanup.clean(cleanup.FOLDER_STRUCTURE)
+
+import core
+from core import logger, main_db
+from core.auto_process import comics, games, movies, music, tv
+from core.auto_process.common import ProcessResult
+from core.plugins.downloaders.nzb.utils import get_nzoid
+from core.plugins.plex import plex_update
+from core.user_scripts import external_script
+from core.utils import (
+    char_replace, clean_dir, convert_to_ascii,
+    extract_files, get_dirs, get_download_info,
+    update_download_info_status,
+)
+
+# Initialize the config
+core.initialize()
+del core.MYAPP
+
+def test_answer():
+    assert core.CHECK_MEDIA == 1