Install pytest-bdd (which will eventually replace behave)

- Copy over the current tests from behave into the new directory that
  pytest-bdd will use them in

Co-authored-by: Micah Jerome Ellison <micah.jerome.ellison@gmail.com>

pyproject.toml

@@ -50,6 +50,7 @@ black = {version = "^21.5b2",allow-prereleases = true}
 toml = ">=0.10"
 pyflakes = ">=2.2.0"
 pytest = ">=6.2"
+pytest-bdd = "^4.0.1"
 yq = ">=2.11"
 
 [tool.poetry.scripts]
@@ -62,6 +63,9 @@ line_length = 88
 known_first_party = ["jrnl"]
 force_sort_within_sections = true
 
+[tool.pytest.ini_options]
+minversion = "6.0"
+
 [build-system]
 requires = ["poetry>=1.1"]
 build-backend = "poetry.masonry.api"