Add exercises from sw5 theory lesson

src/exercises/my_logger.py

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+import logging
+from pathlib import Path
+
+Path("data/logs").mkdir(parents=True, exist_ok=True)
+Path("data/logs/app.log").open("a")
+logging.basicConfig(
+    level=logging.ERROR,
+    filename="data/logs/app.log",
+    filemode="a",
+    format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
+)
+
+logging.debug("Application started")
+logging.info("Application started")
+logging.warning("Application started")
+logging.error("Application started")
+logging.critical("Application started")

src/exercises/pathlib_test.py

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+import json
+from pathlib import Path
+
+
+def create_orders():
+    path = Path("data/processed")
+    path.mkdir(parents=True, exist_ok=True)
+
+    orders_path = path / "orders.csv"
+    orders_path.open("w", encoding="utf-8")
+
+
+def create_settings():
+    settings = {"mode": "debug", "retries": 3}
+
+    with Path("data/processed/settings.json").open("w", encoding="utf-8") as f:
+        json.dump(settings, f, indent=2, ensure_ascii=False)
+
+
+if __name__ == "__main__":
+    # create_orders()
+    (create_settings())