Add in bare bones yet functional HR goal: goal_hr_schedule_pto

tools/book_pto.py

@@ -0,0 +1,9 @@
+def book_pto(args: dict) -> dict:
+    
+    email = args.get("email")
+    start_date = args.get("start_date")
+    end_date = args.get("end_date")
+
+    return {
+        "status": "success"
+    }