FTs now exist in own test files, ea. reliant on base.py to execute

src/functional_tests/test_list_item_validation.py

@@ -0,0 +1,8 @@
+from selenium.webdriver.common.by import By
+from selenium.webdriver.common.keys import Keys
+
+from .base import FunctionalTest
+
+class ItemValidationTest(FunctionalTest):
+    def test_cannot_add_empty_list_items(self):
+        self.fail("write me!")