PY-22556, PY-23233, PY-23217: Set working directory for tests that are not in packages (expect pytest with py3):

* Useless code removed from PyQualifiedNameResolveContext
 * Logic extracted to PyTestRunnerUtils
 * Tests added

python/testData/testRunner/env/createConfigurationTest/logic.py

@@ -0,0 +1,3 @@
+# coding=utf-8
+def smart_func():
+    return 42

python/testData/testRunner/env/createConfigurationTest/tests_folder/test_lonely.py

@@ -0,0 +1,9 @@
+from unittest import TestCase
+
+from logic import smart_func
+from tests_package.test_tools import ANSWER
+
+
+class TestLonely(TestCase):
+    def test_test(self):
+        self.assertEqual(ANSWER, smart_func())

python/testData/testRunner/env/createConfigurationTest/tests_package/package_test/test_in_package.py

@@ -0,0 +1,9 @@
+from unittest import TestCase
+
+from logic import smart_func
+from tests_package.test_tools import ANSWER
+
+
+class TestLogic(TestCase):
+    def test_test(self):
+        self.assertEqual(ANSWER, smart_func())

python/testData/testRunner/env/createConfigurationTest/tests_package/test_tools.py

@@ -0,0 +1 @@
+ANSWER  = 42